Based on some numbers in the post here: www.elitefourum.com/t/tcgfish-market-research-january-2022-update/34198/1
People just like 10, this is something psychologically. 10 sounds better than 9.5. But CGC market is definitely getting more stable and recognizable.
But based on my grading experience. CGC 10 is extremely difficult. Pack fresh cards mostly will get bellow 9. CGC 9.5 is very good quality. If I cross my PSA to CGC, Most of my PSA 10 can’t get CGC 9.5, none will get CGC 10.