I'm actually a fan of live albums. Some of my favourites:
Metallica - S&M, Live Shit
Dream Theater - Live Scenes
Dave Matthews - Weekend On The Rocks, Unplugged with Tim Reynolds
Iced Earth - Alive In Athens
Tom Waits - Nighthawks At The Diner
Pink Floyd - PULSE
Evergrey - A Night To Remember
Maiden - Rio
Porcupine Tree - Coma Divine, Warzawa
The Dark Tranquillity live album was actually a bit of a let down, since Stanne wasnt on his best performance and the crowd sucked. I hated the Death Live In LA's sound, so I'm not a fan of that one. And of course, the In Flames live album is probably the only live album I refused to listen to more than once.