oo cm on..now thats not exactly trueI dont think half the girls at the concert gave half a shit about WHAT metallica play. They were just there because it is cool. The atmosphere is electric, they get to be in a concert like they see on the TV with the multicoloured lights and works, plus they can brag the next four years that i was at metallica concert. This is what i can gather from girls around me. I mean quoting from personal experience, I play Nothing Else matters and other dudes play some hindi songs with the standard G-D-Amin-C progressions they get loads of limelight. I learnt from it and played songs from Rock On a few days back at my college and then there are tons of girls lining up to give me blowjobs(I keed :P: ) but yeah you get the point.
PS: This was typed before the other replies came so place it after the metallica post by nandy
p.s. i am sure you are exaggerating :P