For you members that have ONLY seen stadium concerts you owe it to yourself to see a REAL show at least once in your life. Try a smaller venue, with a halfway decent band and notice how much more fun you will have.
I'm just the opposite. I've only been to smaller clubs for music. Never been to a stadium show other than the old Edge Fests would be the closest. It probably is also because my taste in music has been Alternative or Industrial.
I've yet to see Green Day though. Heard they put on a great show.