You can see what's listed for the auction so far here: https://www.proxibid.com/asp/Catalog.asp?aid=74497

As for buying games at TPF, there are a few ways that could help you get a great deal:

Best: bring a game so you will have early access to the floor and the chance to see everything (and close a deal) before the doors even open

Decent: be there right when the doors open to the public, and go in with the intention of doing nothing but quickly covering as much floor space as you can, looking for deals before anyone else can get to them

Also decent: As time passes on Sunday, some of those who have been playing, partying, and standing all weekend will find it more attractive to accept your offer on a machine, than to go through the hassle of loading it back up and lugging it back home.