Base Set Item Finder 74/102: PSA 9 vs PSA 10
On Base Set Item Finder 74/102, PSA 10 sells for 3x a PSA 9, a $195 delta, which is a meaningful PSA 10 premium. Based on the last tracked PSA 10 sale of $295.00 on Apr 28, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.
PSA 10
$295.00
Last sale $295.00 on
PSA 9
$100.00
Last sale $100.00 on
PSA 8
$11.50
Last sale $11.50 on
The Spread
The PSA 9 to PSA 10 spread on Item Finder 74/102 (Base Set).
$195
Dollar gap, PSA 9 to PSA 10
3x
PSA 10 sells for 3x a PSA 9
Three-Outcome EV Calculator
15%
70%
15%
Defaults are conservative starting points. Adjust based on the specific slab. A borderline 9 with strong centering plays differently than a 9 with edge wear.
PSA 10 outcome (sale price minus resub minus acquisition)
$0
PSA 9 outcome (regrade, no upgrade)
$0
PSA 8 outcome (downgrade, slower sell, tied capital)
$0
Expected Value
$0
Math favors holding the 9
Base Set 74/102 Item Finder is a WOTC-era release from 1999. The gap between its PSA 9 and PSA 10 prices is $195.
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