I'm also a casual fan of this band! I wasn't sure they were still around, since I hadn't heard from them in a while... I'll bet they're great in concert!

That "encore situation" is something I've never encountered, though... I've seen cases where the audience was clamouring for more in vain (which is really not cool, IMO), but never a case where the band was game, but not the audience - at least not en masse (there's always the isolated jerk who was clearly dragged there by his/her spouse and was making snarky comments throughout the concert).