Mountain Fortress #910029 — Loose vs Complete (CIB) vs Sealed (new): which is worth more?

Mountain Fortress #910029 value — Loose $438 vs Complete (CIB) $575. Complete (CIB) sells for 1.31× Loose (+31%). Prices updated August 2026.

Rising · +9%
ConditionSold medianvs Loose
Loose$438eBay ↗
Complete (CIB)$5751.31× · +31%eBay ↗
Sealed (new)$5851.34× · +34%eBay ↗

Medians of real sold listings per condition, updated August 2026 how we compute values.

Loose vs Complete (CIB)
$438$575

Complete (CIB) sells for 1.31× (+31%) the Loose price — a $137 difference per set.

Complete (CIB) vs Sealed (new)
$575$585

Sealed (new) sells for 1.02× (+2%) the Complete (CIB) price — a $10 difference per set.

Is complete worth it?

Complete (CIB) $575 vs Loose $438 — a $137 premium (+31%). If you're holding the box and manual, completing a loose copy pays when that premium beats what the missing pieces cost you.

See current eBay listingsSee sold Mountain Fortress #910029 listings ↗Full Mountain Fortress #910029 price guide →

Values are estimates from real sales data — not appraisals or offers. Some links earn JunkPal a commission at no cost to you (disclosure).