You should have read the thread title closer before coming in I guess if this is upsetting to you. This is the "maybe" for sale thread. Meaning it's a bunch of people that are considering selling games but may have not made up their mind if they are going to do so. I will never commit to something that I can't guarantee that I will come through on that commitment.
For me specifically - BTW and I are restoring a Xenon. If we complete it in time and the restore is satisfactory to the both of us we have both agreed to take it to the festival and to put it for sale with an actual price attached to it. Right now, we are only halfway through the restore so I can not make a 100% guarantee it will be done nor can I provide a price as we have not finalized on the level of restore that will be done on a few items thus why I felt comfortable posting in a "maybe" for sale thread.
In general. If you want to buy a game go super early and bring a game to get in. History has shown all the good deals generally go down before the show even open and you have to be a vendor/exhibitor to get in that early. After the show starts you may find one or two good deals but most games are overpriced and fishing at that point.
If there is a game listed that you want then just ask how much and if someone wants to make a deal prior to the event of which you can pick up the game. Easy enough.