Posted By:
SCJim,
I was saying - how many cards are worth getting graded, regardless of grade? Yes, any 8 in the 50s is worth slabbing...but would you slab a 55T common in a 3? You may well do that with a Clemente RC, but there are only a handful of cards in most sets (especially post-mid 50s) that are worth getting graded less than a 7 at minimum.
Point being that comparing the population on a PSA 7 '55 common to a PSA 8 isn't exactly a valid comparison of rarity, because a lot of 7s will never be submitted due to economics of grading.