Posted By:
Eric BrehmPeter -- oh, ok. I would guess that most BGS-slabbed cards will be sold to people who collect BGS-slabbed cards. I'm sure there will be attempts to cross them over to PSA or SGC as well, to get a better return at time of sale, but I have no idea how many.
I thought there was also a question of how many high grade T206 cards are still out there, unslabbed. I think the only way to approach that question, albeit in a very approximate manner, is to look at the rate at which new cards are being holdered over time. If the rate is very high, there are probably a lot still out there to be graded, and conversely. The only set I have looked at in this regard is 1933 Goudey, as I indicated earlier. I concluded that the rate of population increase for these cards is relatively low, about 1 new high grade card per year, per card in the set.