Super glad for the new shop, look at the levels of the stuff on my lv10 character, I've even beaten the medium crypt twice (including the boss there) and this is the stuff I'm still running around with:
(Note: I tried farming for the blue slime gear, but none of it is dropping for some reason? More bad luck I guess.)
That said, just make sure the shop isn't overpowered or anything, it should probably still remain as a "backup", a bandaid fix for anyone with terrible RNG luck to fill in gaps.