Should You Grade Koga's Koffing (1st Edition)?
Gym Challenge · #48
Expected-value figures are estimates based on historical grade distributions and market prices. Not a recommendation. Grading outcomes and market prices are not guaranteed.
Methodology
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Estimated grading EV negative
Current grading costs exceed model estimate of PSA 10 premium
Expected Value
Raw price$6.90
Grading cost~$22.00
Blended EV$-2.55
Estimated profit$-9.45
Estimated return-33%
Break-even sell price$0.52
Profit by Grade
PSA 8
$18.00
$-10.90 (-38%)
PSA 9
$36.13
+$7.23 (25%)
PSA 10
$170.06
+$141.16 (488%)
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