well i think herein lies the problem. U2 has always adapted with the times. and U2 has always talked a big game. this time around we heard quotes from the band about how they were going to change it up. if my calculations are correct - elevation tour at this point had 35 different original songs played and guess what, vertigo has 35 original songs played as well. but i'm a fan who realizes you can't believe a word bono says about song selection, yet these quotes were from the other band members. i think that has many of us disappointed. and it's not like we don't appreciate the old songs from boy coming back and other dusted off relics, but its the fact that U2 has pretty much turned its back on 4 of their last 6 albums. if you take ab and htaab out of the equation, U2 has played 3 total songs of r & h, zooropa, pop and atyclb. and this comes to my final point. we are in the era of the internet when fans knows the setlist almost before the band does. even common fans check out websites nowadays. i think this is where U2 has failed. they always pushed themselves to adapt with the times, and they said they would, and they have not. not that their shows arent still good, but U2 has a huge die hard fan base, and this may shock people, but the common fan actually attends more than one show. in nj1 i met a ton of people on the floor who had never seen U2 or only seen them once on the last tour and said they had tickets to both nights. and for msg shows later on.
i guess it comes down to some people just don't care if they play the same set or not. i'm a musician and i don't understand how a band could just neglect the majority of their catalog.