Worth Grading
The grading maths works on the Common Meowth from Generations. A 177% Return on Grading comes from the spread between $0.30 raw and $250.00 graded. Not spectacular, but the margin is real once fees are covered.
Among the 24 cards in Generations with PSA 10 sale data, Meowth ranks 15th for Return on Grading and 15th by PSA 10 price. Of the 4 Common cards with PSA 10 sales, it is 4th for Return on Grading. The median PSA 10 in this set sells for $710.25. 18 of the 24 clear a 100% Return on Grading.