I'm not that much into concerts, I only go to like special ones and since I travel a lot (song of my life, changing places left and forth), I've seen great bands in different venues
my fave concerts so far have been: Scorpions & BPO in Hannover 2000 (believe it or not, my parents went with me there), Muse at London 2007 and Iron Maiden in Buenos Aires 2008 (and that was the last concert I've ever been to, in March)
SD: how cool that you are practically a part of your fave band's entourage!
when these guys get really really big, you'll be able to say: told you so WORLD
