Here's the thing though: Us diehards will be happy with one or two gems/rarities in a set. The casual fans will go home happy as long as they get Prayer, It's My Life, Wanted, and maybe a couple of others depending on where the show is. The number of songs that "need" to be played at every gig is quite small. Even if you add songs from whatever the current album happens to be, you've still got plenty of room to mix up sets and chuck in a bone for the diehards.