The Mountain Cave #21137 — Loose vs Complete (CIB) vs Sealed (new): which is worth more?
The Mountain Cave #21137 value — Loose $165 vs Complete (CIB) $879. Complete (CIB) sells for 5.33× Loose (+433%). Prices updated August 2026.
→ Steady
ConditionSold medianvs Loose
Medians of real sold listings per condition, updated August 2026 — how we compute values.
Loose vs Complete (CIB)
$165→$879
Complete (CIB) sells for 5.33× (+433%) the Loose price — a $714 difference per set.
Complete (CIB) vs Sealed (new)
$879→$1729
Sealed (new) sells for 1.97× (+97%) the Complete (CIB) price — a $850 difference per set.
Is complete worth it?
Complete (CIB) $879 vs Loose $165 — a $714 premium (+433%). If you're holding the box and manual, completing a loose copy pays when that premium beats what the missing pieces cost you.
Values are estimates from real sales data — not appraisals or offers. Some links earn JunkPal a commission at no cost to you (disclosure).