A "30% off" badge tells you what a retailer wants you to compare against. It does not tell you whether this is a good price. We checked 916 LEGO sets currently advertising 20%+ off — and one in four is still more than 10% above the cheapest price that set has ever had.
There is only one number that settles the question: the all-time low. Not the RRP, not the crossed-out price, not last week's price. The lowest that set has actually sold for.
We have been recording European LEGO prices since 25 January 2026 — 214,169 price observations across 51,928 retailer listings. That is enough history to check every claim on a sale badge.
What the discount badge hides
Taking the 1,539 sets with enough price history to judge:
| Share of sets | |
|---|---|
| Currently at their all-time low | 39.8% |
| Within 10% of their all-time low | 68.8% |
| More than 10% above their all-time low | 31.2% |
The median set sits just 3.0% above its all-time low, which is genuinely reassuring: most of the time, today's best European price is close to the best price there has ever been.
But the tail matters. Nearly a third of sets are meaningfully above their own record — and those are precisely the sets where a discount badge is most misleading, because the RRP comparison still looks impressive.
The one-in-four problem
Now narrow it to sets that are currently advertising a real discount — 916 sets at 20% or more below RRP:
| Of those 916 sets... | |
|---|---|
| Median distance from their own all-time low | 1.5% |
| Still more than 10% above their own all-time low | 24.7% |
So: three in four "20% off" deals really are close to the best price that set has ever had. The discount is real and the timing is fine.
But one in four is not. Those sets have been cheaper — often materially cheaper — and the badge gives you no way to know. You are comparing against a number LEGO set years ago, not against what the market has actually charged.
This is the entire reason price history exists as a feature. A discount is a claim about the past. Only a price chart can check it.
What a genuinely good price looks like
Across every set with a recorded European RRP, the median all-time low is 29.2% below RRP.
That gives you a rule of thumb worth more than any sale badge:
- Below 20% off — for an in-production set, this is usually not the moment. Set an alert.
- Around 30% off — you are in the neighbourhood of the typical all-time low. A sensible buy.
- Well past 30% off — genuinely unusual. Check the price chart; if it is at or near the all-time low, take it.
The caveat that matters: this applies to sets still in production. Retired sets follow the opposite logic entirely — their all-time low is usually behind them, and prices only rise. We cover that in the retirement guide.
Why bookmarks don't work
Amazon.de and Amazon.fr — the two deepest discounters in Europe — average around 41% off when they hold the cheapest price. That pricing is algorithmic and it moves within hours.
There is no browsing routine that catches that. By the time you check on a Saturday, the Tuesday price is gone. Two things solve it: history, so you know what "cheap" means for this set, and alerts, so you find out while it is still true.
How to check any set in ten seconds
- Open the set page on BrickPrice. Every set carries its own price history chart — the actual recorded low, not a marketing number.
- Compare today's best European price against that low. If today is at or near it, that is your answer.
- If it isn't, tap ❤ Watch and enter your email. We tell you when it drops. No account, no password.
Sets currently at their all-time low → · Biggest live discounts vs RRP →
Method
- Source: BrickPrice's own tracking of 40+ European retailers, 25 January – 13 August 2026.
- Sample: 214,169 price observations across 51,928 retailer listings. The analysis uses the 1,539 sets with a European RRP on record, at least 20 recorded price points, and a live listing in the last 30 days.
- All-time low: the lowest EUR price we have recorded for that set at any European retailer since 25 January 2026. It is a low over our tracking window, not over the set's entire life — a set that was cheaper in 2023 would not show it here.
- Currency: eurozone (EUR) listings only, so no FX conversion enters the comparison.
- Sanity filter: listings below 30% of RRP are discarded as scraper artefacts (a retailer occasionally publishes a single-part SKU under a set's URL).
- Prices exclude shipping.