I went to a lot of shows with my church youth group so I don't even remember. My first non church related show or kids event was probably Third Eye Blind too but on their first tour. I still consider their self-titled a guilty pleasure. But, the show wasn't very good since it was at the State Fair.
One of these years, I am going to spend the money and go see somebody play at the Xcel Energy Center. I haven't ever seen a mainstream act in an arena because all the shows I want to see are usually at First. Ave or the Entry and I can't justify paying 50-60 dollars extra to see a band I really don't care that much about just to experience a concert there. But, I've heard it's a great place to see a show so hopefully somebody plays there that I'd want to see.