How does one get off the merry-go-round?

There is no escape, it's like the Mafia, you can't quit. You can settle down for 6-12 months (in remission) but it always comes back :-)

"Just when I think I'm out, they keep pulling me back in."

Getting hung up on detail, not music will keep one constantly wanting to upgrade to improve "sound" but will this improve the "music"?
Is detail musically important? How much detail is necessary? Can overemphasis on detail draw attention away from other important problems like driver integration, even frequency balance, or ear fatigue?
When auditioning I'm in "analytical mode" and judge a stereo on analytical sound. But then I get home and want to listen for enjoyment of music which may or may not be related to the analytical reasons I got the stereo.
Also I think justifying the sound on a price basis is a road to dissatisfaction. Like saying "For $8,000 this better blow me and all my friends away". It probably won't or won't for long. Then its on to the next "fix". I think spending the money should not be a bargaining point for sound quality. Spend what you feel comfortable with, not trying to justify anything.
I have also found that when my stereo sounds good and I want to make it better, I have a 50/50 chance. That is, I have as much chance of making the sound worse as making it better.

One December several years ago, I found myself with four or five of every type of component: amp, speakers, cables, preamp. Ok, just two turntables. No room for ME in my house! So I made a rule: I am not allowed to own more than two of two component categories. So if I have two amps and two pairs of speakers and I want to try a new pair of speaker cables, well, one of my other redundant components has to go.

It worked to a great extent. I can still suffer too much churn (buying a new cd player too often, for example, and yes selling the old one first), but this has not been much of a problem. Buying is easier psychologically than selling, as you probably have noticed.

My rule has made a HUGE difference, without eliminating the fun of the hobby.

Art

Art, That's a darn good idea. I may try that..