Why is U2 so popular?

You like the idea of being a guy who’s into live music but the last few concerts you’ve been to were a too loud b too crowded c too foreign youre lucky if you recognize one song. You’ll snap a few photos with your smartphone and tell your bros about it to get some street cred but let’s face it – you didn’t enjoy yourself. There are millions of you.  And you’re willing to drop cash to have a concert make you feel cool again.

via Daniel Rosenthals answer to Why is U2 so popular? – Quora.