Set 42703
Mermaid Roller Coaster Ride
On shelves nowRetail price$109.99What LEGO charged
Worth now$161.88Typical sealed asking price · 11 listings
Recently sold—No recent sales on file
vs retail+47%Worth more than it cost
Worth watching
Retail is $110; you'd want it nearer $92. Wait for a sale.
How much is LEGO 42703 Mermaid Roller Coaster Ride worth?
LEGO 42703 Mermaid Roller Coaster Ride is worth about $161.88 sealed right now, based on 11 live sealed listings on eBay. That's 47% above its $109.99 retail price. It came out in 2026 with 874 pieces and 5 minifigures. It's still sold in shops. Over the last 83 days its typical asking price has risen 25%, from $129.69 to $161.88. We last checked it 9 days ago.
Price history
Value history
Oct 17$16211 listings
- Lowest
- $130
- Highest
- $162
- Change
- +25%
- Asking vs retail
- +47%
27 observations · median asking · rechecked 8× daily
Should you buy it?
Still on shelves at $110 and already worth $162 sealed. That’s the one to watch.
If you bought it to resell
Sells sealed for$162
Marketplace fees · 15.25%−$25
Payment processing · 2.9% + $0.30−$6
Shipping · est. from 874 pieces−$18
Reaches you$114
Pay no more than$87
For a 30% return at your costs. Change them and every figure on the site follows.
How long has it been on shelves?
Still early — released 2026, and sets like this usually run about 3 years. No hurry.
LEGO never announces retirement dates. This is only how long the set has been available against how long sets of its size usually run — not a prediction, and not inside information.
Set details
- Set number
- 42703
- Theme
- Friends
- Released
- 2026
- Status
- On shelves now
- Pieces
- 874
- Minifigures
- 5
- Retail price
- $109.99
- Value per piece
- $0.185
- Price confidence
- medium · 11 listings
- Last checked
- 9 days ago
Where these numbers come from
eBay11 live listingsThe asking price here — the median of what sellers want right now, $162. Last checked Oct 17.See the listings →BrickLinkPrice guideNo completed sales recorded for this one yet. Last checked Oct 24.Open the price guide →Catalogue874 piecesPiece counts, minifigures, release year and retail price come from Rebrickable and Brickset. Retail was $110.See the catalogue entry →
eBay links are affiliate links — if you buy after clicking, we earn a small commission at no cost to you, and that is what pays for the site. BrickLink has no such programme, so those are plain links. Neither changes what we show or what we say about it.
How to read this. The value is the median of live sealed listings, after removing instructions, empty boxes, used sets, multi-set lots and implausible outliers. Real sale prices usually land below asking, so the buy-below figure is deliberately the conservative end of the range.
More Friends sets from around 2026
See all →
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▲ 49% vs retail42702 · 2026Spinning Flower & Fairy Teacup RideFriends · 321 pcs$6012 listings · retail $40Not at retail
▲ 47% vs retail42705 · 2026Cozy Fall Forest CabinFriends · 1,229 pcs$1629 listings · retail $110Worth watching
▲ 42% vs retail42700 · 2026Candy & Cupcake Ferris WheelFriends · 602 pcs$8515 listings · retail $60Not at retail