by invite only.;-p
Actually, since digital has wiped out AP in consumer stores, and since this stuff is hard to ship, I don't expect many of the 'usual suspects'. Tough to pack a couple suitcases with enlargers and fly 'em back to New York. These ain't Leicas.
Maybe some Ebay speculators, and scrap guys. Who knows. A few photographers there will encourage the auctioneer to not bundle everything up in lots.
Just don't tell Carnie.