Why do all these shows look exactly the same on paper?

Guess I'm just thinking about the few youngsters who "do tour." I can't imagine seeing the same songs over and over throughout the course of a longish tour. I understood when they announced the return that songs would be played "until they got it right" or something to that effect. But really? Are the songs in current rotation going to eventually be pared down to 20 or 30 selections, rote recital replacing the spontaneous manifest destiny setlist of yore?

Sorry this isn't a proper review but it's a feeling I've been having for a while now and curious if anyone else shares it.