There are other rooms to that building not being used yet for this show. I'm sure as the show grows, they'll be neededIIRC, last year there was a room off to the side of the entrance check in - by the Men's Restroom, that was the "Swap" Meet room and was available with tables and chairs to sit and swap.
I did go up to the Entrance Lobby where there were chairs and tables a couple times to rest my feet and back.

