Adventure Time #21308 — LEGO Ideas Set Value
LEGO IdeasWhat the Adventure Time #21308 LEGO set is worth — loose, complete, and sealed.
Adventure Time #21308 value — Loose $40 · Complete (CIB) $73 · Sealed (new) $100. Prices updated August 2026.
Theme · LEGO Ideas
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Complete-in-box price history
Monthly CIB value, based on sold comps.
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Item details
- UPC / EAN
- 5702015879668
- Brand
- LEGO
- Theme
- LEGO Ideas
- Set number
- #21308
- Release date
- January 1, 2017
Adventure Time #21308 (LEGO Ideas) resale value
A loose Adventure Time #21308 set runs around $40, a complete copy (all pieces + box + instructions) about $73, and a factory-sealed box commands $100.
What drives the price
Retired sets, completeness (every piece + minifigs + instructions + box), and sealed condition drive LEGO value. Exclusive sets and discontinued themes appreciate the most; minifigs alone can carry significant value.
Price guide
What this actually trades for — sold values by condition vs. what sellers are asking today
| Condition | Value | Based on |
|---|---|---|
| Loose | $40 | eBay sold comps |
| Complete (CIB) | $73 | eBay sold comps |
| Sealed (new) | $100 | eBay sold comps |
Frequently asked questions
- What is the best deal for buying Adventure Time #21308?
- If you need the pieces and don't require the box, the loose version is the most affordable at $37.
- How much is the complete, boxed set worth?
- The complete, in-box version of Adventure Time #21308 is listed for $63.
- Can I buy this set brand new?
- Yes, the sealed, new version of Adventure Time #21308 is available for $100.
