Sales in physical stores start from a stable price; online prices change constantly. Learn how to tell a real discount from a fake -50% on Amazon.
Are Amazon online sales really worth it?
When you see a -50% on Amazon, you immediately think of a great deal. But here's the catch: online sales don't work like in-store ones. In a physical fashion store, sales start from a stable price that has been charged for months; the reduction is real and verifiable by looking at the previous price tag. Online, everything is different. The price is not fixed; it changes dozens of times a day, and the strikethrough price (the one with the line through it) often does not reflect what the product actually cost. That's why Amazon online sales are not always as good as they seem, and how to expose empty promises.
Physical sales vs online discounts: two different worlds
How sales work in a physical store
In a physical store, the price is set at the start of the season and remains stable for weeks or months. When the sales start (January, July), that price is officially and publicly reduced. The customer knows exactly what the previous price was because they've seen it displayed for months. The reduction is objective, verifiable, and transparent.
How "sales" work online
Online, there are no "sales" in the traditional sense. Prices are dynamic: a product might cost £50 on Monday, £45 on Wednesday, £60 on Friday, without any official notice from the seller. Amazon shows the current price and a "strikethrough price" (an estimate of what it "normally" costs), but that strikethrough price is calculated by algorithms, not by an annual policy. Result: you can see a product at -60% when it's actually been at that price, or lower, for weeks.
How the fake discount is created: the inflated strikethrough price
The mechanics of the strikethrough price
Amazon calculates the strikethrough price by taking the highest price charged in the last 90 days (or, in some cases, an estimate of the MSRP provided by the manufacturer). The problem: if a product was deliberately inflated just once, that peak becomes the "reference" and all subsequent prices appear as discounts.
Concrete example: imagine a tech organiser that normally costs £25. A third-party seller lists it at £49 for 2 days, then resells it at £6 via Amazon. The system calculates the strikethrough price as £49 (the maximum in the last 90 days) and shows a discount of -88%. Reality: the real discount is from the median price (£25) to £6 (actual reduction). The apparent discount is massively exaggerated.
Products like the Seven Tech Organiser (-90%) or the PocBuds Bluetooth Headphones (-88%) often operate on this logic: previous prices inflated to create the illusion of a giant discount.
Who benefits from the inflated strikethrough price
- Third-party sellers: they create false urgency ("90% off! Hurry!") without actually reducing their margins
- Unknown brands: they use price spikes to appear more "discounted" than competitors
- Amazon: order volume increases thanks to the perceived urgency
The only one who doesn't benefit is you: the consumer.
Table: Physical sales vs online discounts
| Aspect | In-store sales | Amazon discounts |
|---|---|---|
| Starting price | Stable for months, visible | Dynamic, calculated by algorithms |
| Discount verification | Previous price tag | Strikethrough price (often inflated) |
| Transparency | High (everyone sees the same price) | Low (varies per user, IP, history) |
| Offer duration | Predefined (e.g., 2 weeks) | Unpredictable (hours, days) |
| Return policy | Unless otherwise stated | 30 days (for most items) |
| Discount reliability | Verified in the past | Calculated on uncertain algorithms |
| Verification tool | Customer's memory | 90-day price history |
How to verify if an online discount is genuine
Using the 90-day price history
Glitchoo uses a 90-day price history precisely to expose inflated strikethrough prices. Here's how it works:
- Check the 90-day lowest price: that's the real "deal" if the product was genuinely there
- Check the median price: it represents the "normal" price for that product
- Compare the current price: if it's below the median, it's a real discount; if it's close to the historical low, the urgency is fake
- Look at the peaks: if the strikethrough price matches a 2-3 day spike, it's manipulated
Practical example: the Bluetooth Headphones -85% often show a history like this:
- Maximum price (90 days): £89
- Median price (90 days): £35
- Current price: £13
The real discount is not -85% from £89, but -63% from £35 (the "normal" price). Completely different.
Trust Score: offer reliability
History alone is not enough. A reliable offer must have:
- Stable price in previous days: less volatility = less manipulation
- Seller with positive history: "Dispatched by Amazon" or a known brand is more trustworthy
- Consistency with the category: a tech organiser at £6 after being at £49 raises suspicion; at £18 after £25 is plausible
- Compatibility with production cost: you'd never believe a smartphone at £30, but a tech organiser at £6 is more believable
At Glitchoo, the Trust Score combines these factors and tells you at a glance if an offer is solid or a trap.
When online sales (actually) work
It's not all bad. Amazon online sales work in these cases:
- Products with stable history: if an item has been around £30 for 60 days and drops to £18, it's a genuine -40% discount
- Documented end of season: older model appliances drop before the new one arrives (true demand decrease)
- Certified price errors: when the price drops suddenly without an inflated strikethrough (often last hours and Amazon cancels them)
- Verified brand coupons: if the brand applies a -15% coupon on a stable product, it's a real discount on top of the base price
The crucial difference: physical sales guarantee a true discount by design; online discounts must be verified with price history to expose tricks.
Price errors vs regular discounts
Sometimes "discounts" online are actually price errors: the price drops not by seller choice but due to a system bug. In that case:
- The offer lasts hours, not days
- The price is ridiculously low (example: Champion hoodie -85% at £15 when it normally costs £50)
- Amazon can cancel the order according to its terms if it identifies the error
Glitchoo doesn't teach you to force Amazon to honour an error (that would be unethical). It teaches you to recognise a real error when it happens, so you are aware of the risks. If you order during a price error, your order might be cancelled; if the discount is legitimate (even if inflated), Amazon will honour it.
Frequently Asked Questions
Do online sales last as long as physical ones?
No. Physical sales have a communicated start and end date (e.g., sales in January for 4 weeks). Online, the price changes constantly without warning. An offer can disappear in a few hours. That's why Glitchoo sends alerts on verified deals: they don't last long.
Can I trust Amazon's strikethrough price?
Not entirely. It's calculated by algorithms on data that the seller influences. If the price was inflated even once, the strikethrough remains high. Always use price history to verify the actual average price.
How do I know if a discount is real?
Compare it with the 90-day price history. If the current price is below the median, it's a real discount. If it's similar to the historical low, the strikethrough is exaggerated. Glitchoo does this automatically with the Trust Score.
Are coupons and discounts the same thing?
No. A coupon is applied by the brand and visible as "Coupon available" on the page. The percentage discount is calculated from the strikethrough price. The same product can have -20% (base price) + coupon -10% (applied by you), for a total saving of around -28%. They are different mechanisms.
Is it worth waiting for the price to drop further before buying?
In short: online prices are unpredictable. It could drop (rare) or rise (common). If the history shows the current price is a historical low, it's not worth waiting. If it's a new low, it might drop further. Look at the trend of the previous 30 days.
Conclusion
Amazon online sales are not as good as they seem because they work under completely different rules from physical sales. An inflated strikethrough price and constant dynamics make it almost impossible to know if you are really saving or falling for an optical illusion.
How to defend yourself? You can't rely only on the percentage discount. You must verify the price with the 90-day history, compare it with the median, and assign a Trust Score to the offer.
Glitchoo does this for you: discover verified deals with certified price history and stop paying for illusions. Real bargains online exist, but they must be sought with open eyes.
Don't wait for the price to drop further: the trend rarely rewards waiting online. If the history tells you the current price is solid, lock in your deal now. Prices change constantly: always check the Amazon product page before buying and trust the data, not the apparent urgency.
Glitchoo is an Amazon UK affiliate: if you buy through our links we earn a small commission at no extra cost to you.