However, a sound crew/video crew/lighting crew need to have a setlist to run their cues by. Especially in a complicated stadium show. That's why Zoo TV and Popmart had the same setlist nearly every night with very little differientiation.
Yeah, most of the reason for static setlists is because Bono hates rehearsing.
This is a piss-poor excuse for static setlists. It just doesn't hold up. Look at Phish, a band able to play wildly varied setlists and extended improvised jams to audiences of 60,000, 80,000+ people - their crew coped. U2 are a piece of cake in comparison to that. They aren't a jam band and the lighting and other sequences for each song are (in most cases) self-contained, i.e. they don't depend on any segues into other tracks. It should make absolutely no difference to U2's crew if they're doing their sequences for The Fly as the second song of the main set, last song of the main set, or opening song of the encore. It's the same either way. As long as the band get that night's printed setlist to the crew before they go on stage, shuffling the song order each night makes little difference.
Bono did talk about "variable setlists" on the Vertigo Tour, which was cool by U2's standards (if we count out the European leg), but still, they have the potential to do so much more.
The flow/narrative of the show can be done in different ways, so I don't consider that a valid excuse.
Maybe you should steer clear of the set list threads,then you would get a surprise when you see them liveLooking forward to seeing what "have to have a look at that and change the set around more" might mean.
Not holding out too much hope for varied setlists because of those factors already mentioned (rehearsing, forgetting lyrics).
But I'd love to come out of a U2 show thinking, 'wow, playing that song took me completely by surprise'.