Changing a set list doesnt necessarily mean doing a bunch of obscure songs in one concert. it could be just one tune here, one tune there. Then 100% of the people would be surprised, not just the new fans but even the fans who saw the show the night before for example. As I have seen them a couple of back to back times. One song new lets say they played Man in suitcase once is not going to upset the casual fan. Beside so many big bands do this and still are very successfuly touring bands such as bruce Springsteen (every show is different) pearl Jam, heck even the Who shows are different night to night. However there are also other bands that dont change the set list like the VanHalen reunion tour and others Ive seen like Oasis that don't change it up. It just would seem with such great musicians like these 3 we;'ve got and with hopefully no over tracking, sampling and really playing live that they could swap in and out a couple songs and keep it fresh. David L