![Brock's Sandslash [1st Edition] #23](https://storage.googleapis.com/images.pricecharting.com/d501717de25925bd51f528ba5abbd01b0563d1ec79a47203f85b5499816d28b8/1600.jpg)
Brock's Sandslash [1st Edition] #23
Pokemon Gym Heroes · #23 · Aug 2000
Maybe — Proceed with Caution
Should You Grade?
Raw Price
$19.70
Expected Value
$-1.74
Net Profit
$15.29
Gem Rate
21.5%
ROI
+44%
Sales / Yr
73
Negative expected value ($-1.74) — 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 21% — you'll need a very clean copy to hit PSA 10. Only 73 sales per year — it may take time to find a buyer at full price. PSA 10 profit of $15.29 is thin — grading fees and selling costs eat most of the margin.
Best Tier for Flipping
Factors in grading cost, turnaround time, and compounding — how fast you can reinvest profits into the next flip.
Profitability by Grading Company
Shows the best-value tier from each grading company based on EV, cost, and turnaround. Pop = total graded population; 10s = grade 10 count.
Price by Grade
Raw
$19.70
BGS 10
$259.00
PSA 10
$199.00
SGC 10
$119.00
CGC 10
$49.99
9
$30.00
8
$27.46
BGS 9.5
$26.01
7
$24.93
21.5%Gem Rate (PSA 10)
+4 graded in 30 days
+6 in 90 days
Grade Distribution (233 total graded)
233Total
PSA 105021.5%
PSA 911147.6%
PSA 84720.2%
PSA 7135.6%
Below 793.9%