It's been about 6 years since I logged into this account so my opinion may be pretty irrelevant but I'll blather on anyway. I suppose I'd be classed as a casual these days, as I'm not that into muse's recent output and up until this year, hadn't seen them since 2010. But looking at the set list for the European tour spurred me on to buy tickets for one of their shows, and it was great - if the they'd been playing setlists similar to the US I simply wouldn't have bothered. Surely there are casuals, like myself who properly got into them a while ago who would love to hear songs from past eras?