Bands you have stuck with and never given up on

I don't really have any. Sooner or later either they let me down with a consistent string of sub-par releases, or I just get bored and feel it's time to move on. Or the band themselves quit, of course. I've realised that I am slowly stopping caring about Autechre, who I have loved the most and for the longest time. If they released a new album I would certainly listen to it, but without my former levels of enthusiasm or expectation.

So, is there anyone you've stuck with through thick and thin? If they had a really bad run would you ever give up on them? And the bands you have given up on - was it you or was it them?