I think you’ll find the behaviour you describe is quite common.
I think the more spare cash that you have as an individual is inversely proportional to that individual’s happiness with their bike. Well, not in all cases, but often anyway!
Happy with one of my current bikes anyway, well… Nothing I’d really change anyway. Thinking of trying out the new 2 way release shifters (probably SLX) out instead of my old style single way release XT’s, but that doesn’t mean I’m not happy with it.
My DH bike though was totally unsuitable for me really as I don’t do enough DH to warrant having it, hence I’m selling it.