Robot Inventor #51515 — Loose vs Complete (CIB) vs Sealed (new): which is worth more?
Robot Inventor #51515 value — Loose $218 vs Complete (CIB) $499. Complete (CIB) sells for 2.29× Loose (+129%). Prices updated August 2026.
↘ Falling · -12%
ConditionSold medianvs Loose
Medians of real sold listings per condition, updated August 2026 — how we compute values.
Loose vs Complete (CIB)
$218→$499
Complete (CIB) sells for 2.29× (+129%) the Loose price — a $281 difference per set.
Complete (CIB) vs Sealed (new)
$499→$614
Sealed (new) sells for 1.23× (+23%) the Complete (CIB) price — a $115 difference per set.
Is complete worth it?
Complete (CIB) $499 vs Loose $218 — a $281 premium (+129%). 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).