Professor Oak

Grading with PSA pays if your copy has better than a 42% chance of a 10.

23% of the 1,295 copies PSA has graded got a 10. People mostly send their cleanest copies, so a typical raw copy's odds are lower.

Raw (NM)

$72.35

TCGplayer

PSA 10

$324.00

14 sales

PSA 9

$35.50

8 sales

If it misses

$29.33

below 10, by PSA's grades