The thing I've noticed about U2 this tour is that, although ok they will throw out a couple of songs they've never played before, but that don't seem to be as adventurous in their setlist song choices. I mean anyone here who disagrees just look at the Vertigo Tour setlists, for a good number of shows they even started with LAPOE as the opener.
My point is simply that U2 are playing way too much in their safe 'zone' this tour in regards to setlists, NOT single song changes. While it's nice to see them happy and comfortable, it gets very repetitive. Maybe they are just trying to keep things the same experience wise for fans all over, but I think it would be nice to have a few surprises now and then and shake things up. Surely U2 must get somewhat bored of particular songs too?
Anyway as usual, I expect someone to say "I LOVE THE SETLIST AS IT IS BLABLA, YOU ARE WRONG"
This is just my opinion.