Finally went to one of these, just for the one day. The first and last time I went to a PA event was Necrowombicon 2k1 which wasn't really an official thing.
Saw tons of video games stuff of course, didn't really feel like getting in lines to see anything in particular. Mostly just hung out and snapped some photos of cosplayers and browsed wares for sale. Picked up an interesting looking game.
I did do the one thing I wanted to do which was meet Jim Sterling, that was pretty cool even though I flubbed up and went speechless for a moment.