I think Phil hit it on the nose: new money, or maybe profits on new stuff that old money sold. I dunno, but those prices were amazing. A PSA 2 T206 Johnson portrait for $3k! That PC Back Ruth at $30K--holy cow.
I was blown away on every lot before OT. My OT bids were topped almost instantly. I was getting bid confirms, high bidder notices, and outbid notices in the same flurries of emails. I did manage to get one card, not a bargain but a good long term pickup that melds my two interests perfectly: