Base Set 2 Computer Search 101/130: PSA 9 vs PSA 10
On Base Set 2 Computer Search 101/130, PSA 10 sells for 3.3x a PSA 9, a $17 delta, which is a wide gem-mint premium. Based on the last tracked PSA 10 sale of $24.50 on Oct 29, 2024, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.
PSA 10
$24.50
Last sale $24.50 on
PSA 9
$7.50
Last sale $7.50 on
PSA 8
$20.51
Last sale $20.51 on
The Spread
The PSA 9 to PSA 10 spread on Computer Search 101/130 (Base Set 2).
$17
Dollar gap, PSA 9 to PSA 10
3.3x
PSA 10 sells for 3.3x 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
Where this card lands in the broader Base Set 2 picture: a WOTC-era card carrying a $17 gap between PSA 9 and PSA 10, a 3.3x multiple on the PSA 9 price.
Other Base Set 2 Heavy Hitters
Track every grade tier. Spot every gap.
Real PSA prices across every grade tier. Free during beta.
Get Free Beta AccessFounding Member Cohort · Limited to the First 100 Members.