I have not seen any "major" band more than once. But... there is a minor act that I love to go see. A Rock/Bluegrass band called Bonepony, they have a pretty unique sound. At every show I have ever been to, the audience starts the night in their seats and by the end of it everyone is as close to the stage as possible dancing, singing, and having a great time. Been listening to them since 2000 and I don't think I have ever been to a show that didn't last at least two hours... They end every show with the 20 to 40 minute jam called "Heather's Wetter" "Everythings is better when Heather is wetter, everythings better when she's dancing in the nude" - it is a song about skinny dipping and by this time the crowd is so into it everyone in the place is wet... with sweat. Damn good time!