Raichu

Grading with PSA pays if your copy has better than a 13% chance of a 10.

39% of the 278 copies PSA has graded got a 10. People mostly send their cleanest copies, so a typical raw copy's odds are lower.

Raw (NM)

$115.01

TCGplayer

PSA 10

$548.50

6 sales

PSA 9

$160.50

9 sales

If it misses

$144.18

below 10, by PSA's grades