I think you're talking about the "super auctions" in San Jose, CA right?
Pretty sure johnpurs is thinking of something else.
I went. Pretty fun. I'd say there was about 125 vids and 30 pins. Also a couple of jukes, one slot and a full size air hockey. I'd say there was easily 300 people.
If anyone is interested a could put up a couple of (general looking down the aisles) pics.
I picked up a neo geo 1 slot conversion.
-chadius