I have a hard time complaining about U2 ticket prices when scalpers are 
getting from 2 to 10 times face on eBay.  If the guy in the seat ends up 
paying $150 for the ticket, I'd rather the $ go to the band than a scalper. 
There is more nuance here than I have time for so forgive the bluntness of 
the post.  If I went to see U2 at Madison Square Garden for $150, well, no 
joke, I'd probably be sitting in a seat that would cost the same (or more) 
for a Knicks game.  And which would I rather see?