I wonder if other head-fier have the same as me:
for years now, I don't go to (big)stadium concerts. Simply because the soundquality is so incredible bad, it justs ruins all the fun for me. I pay money, can't see them in a decent way plus I'm irritated for 2 hours because of the bad sound.
This is the reason I won't go to Iron Maiden next year.
I've tried stadium concerts, believe me, U2, Bon Jovi, The Police f.e. but I just didn't have fun because the sound was so damn poop