![Brock's Rhyhorn [1st Edition] #70](https://storage.googleapis.com/images.pricecharting.com/de2c02d206ad6562590c8e6506ec798e15be793066ba2758238b9b1e7b660608/1600.jpg)
Pokemon Gym Heroes · #70 · Aug 2000
Should You Grade?
Negative expected value ($-0.57) — 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 17% — you'll need a very clean copy to hit PSA 10.
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.
