Bryston B60 is a keeper for life for me. Either it's life or mine, whichever comes first. I'm 34, and by Bryston's track record, it'll probably outlive me!
There's better amps out there. But isn't there always better? If I win the lottery, if amplification goes through a renaissance, or if today's amps somehow become obsolete, it'll stick around as a second system amp.
I had it updated to the current SST status a few months ago for $125. In the 5 or so years I've owned it, I've never looked forward, backward or sideways.
Im not close minded and think I'll never prefer anything else or go through a phase where I want tubes, but again, I'll never get rid of it.
Or at least won't get rid of it until I have a son that's wise enough to appreciate it.