![Brock's Sandslash [1st Edition] #23](https://storage.googleapis.com/images.pricecharting.com/d501717de25925bd51f528ba5abbd01b0563d1ec79a47203f85b5499816d28b8/1600.jpg)
Pokemon Gym Heroes · #23 · Aug 2000
Should You Grade?
Negative expected value ($-6.51) — while a PSA 10 would be profitable, the probability-weighted outcome across all grades means you lose money on average at this grading tier. The gem rate is only 22% — you'll need a very clean copy to hit PSA 10. Only 85 sales per year — it may take time to find a buyer at full price. PSA 10 profit of $15.99 is thin — grading fees and selling costs eat most of the margin.
Factors in grading cost, turnaround time, and compounding — how fast you can reinvest profits into the next flip.
Shows the best-value tier from each grading company based on EV, cost, and turnaround. Pop = total graded population; 10s = grade 10 count.
