I haven't been to a show since Halloween to see Polysics. That was the best show I've been to (excluding The Spinto Band of course). The majority of the past shows I've been to were bands I wasn't familiar with and a bit too laid back for my taste. Like some good craziness. And being Halloween you had a bunch of moshing zombies which is always cool if you leave with your brains intact.
EDIT: Found a video from the Polysics show. They all came out dressed as Devo before ripping off the costumes after a few songs. That was a great night.