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LEGO 10420 Ariel and Flounder's Café Stand

LEGO 10420 Ariel and Flounder's Café Stand

set number 10420 · Duplo · released 2024 · retail $19.99

Discontinued · Jan 2025Scarce

Brickset lists LEGO 10420 Ariel and Flounder's Café Stand as discontinued (Jan 2025). Not enough verified complete-set listings to calculate a dependable current estimate. Supply looks thin against demand, so the signal reads scarce. It is a proxy, not a production count. Prices below are calculated market estimates from active listings, not completed sales.

Complete-set valuation

Not enough verified complete-set listings to calculate a dependable current estimate. We only price complete sets, so parts, instruction manuals, minifigures and accessory listings never count toward these figures.

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Compared with Duplo

This set: asking prices are +5.7% vs original retail ($1.14) · Duplo median: +26.8% (45 eligible sets).

This is how other Duplo sets that have already retired are priced today. It is not a prediction for any set. Based on current asking prices for verified complete sets on active listings, not completed sales. Past asking-price movement is not a prediction of future value.

Duplo retired-set price data →

Market Performance Score

64/100
  • Appreciation vs theme median (35% weight)32/100
    +5.7% vs retail · theme median +26.8% (-21.1% difference)
  • Scarcity signal (25% weight)69/100
    Scarcity score 69/100 from ownership data and live supply
  • Demand pressure (20% weight)81/100
    30 want-list vs 74 owners (ratio 0.41)
  • Data confidence (20% weight)98/100
    16 verified comps · snapshot 1 day old

Based on current asking prices for verified complete sets. Past asking-price movement is not a prediction of future value.

How this score is calculated

The score describes where this set sits in the current market. It is not advice, a forecast, or an expected return.

Appreciation vs theme median (35%) — this set's current asking median against original retail, compared with the median of already-retired sets in the same theme.

Scarcity signal (25%) — ownership data and live active-listing supply. Never a production quantity: LEGO does not publish those.

Demand pressure (20%) — want-list entries divided by owners.

Data confidence (20%) — how many verified complete-set listings sit behind the median, and how recent the weekly snapshot is.

Eligibility thresholds — a per-set figure needs a confirmed retirement date, a known original retail price, at least 5 verified complete-set listings and at least six months since retirement. A theme median needs at least 8 eligible sets. Below any threshold nothing is published.

Based on current asking prices for verified complete sets on active listings, not completed sales. Past asking-price movement is not a prediction of future value.

Browse current 10420 listings on eBay →

This opens an eBay keyword search for “LEGO 10420”. Results are unfiltered live listings — they are not verified complete sets and carry no price estimate from us. Affiliate link disclosure.

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Retiring soon, listed under retail →Retired sets still under retail →

Figures are typical asking prices from active listing data, not completed sales.

Calculated market estimate over time

2026-08-03 – 2026-10-05 · $21.13 latest

Checked 2026-10-01 · lifecycle data from Brickset. Based on Brickset ownership data + live eBay supply — LEGO does not publish production figures.

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