It seems to be all about proof of being there, or maybe catching a moment (like Edge falling off stage) that may go viral. I saw Oprah on letterman last week, and she was saying how people asking for selfless is exhausting. One woman who was trying to get a selfie with her she couldn't get close enough to, so Oprah told her 'I have to keep moving, just take the picture', and the fan said 'I don't want a picture of you without me in it!' LOL Self obsessed world we live in.
The phones at shows annoy the hell out of me, but I'm thinking it's because I'm the older demographic of fans. I'm trying to accept it as the way things are now, and let's face it, U2 do encourage it.
(Last nights Prince show without them waving around was so great…sigh)