I've got a couple that could be candidates.

I'm a big Magik Markers fan. During my time of listening to them they have changed in style. People on here have raved about their early shows eg Vicent Gallow ATP. There's also some spectacular you tube footage about - Elisa clearly off her rocker, which looks like great fun. But the gig reactions from various circles have been lukewarm more recently. Have I missed my chance at seeing this band in their prime?

Reading David Keenan's review of the Glasgow Julian Lynch gig gives me a simliar idea. Orange You Glad was sooo good! Would I be disappointed now?

It just gives me the idea that when a band is at the top of their game - that is when you bust a gut to see them.