The two stages of audiophilia

sgreg1,
"Their only hope is that they come full circle and rediscover the love of music"

I think you may be painting with a rather large brush here.

Personally, I've never lost my love of music (or stopped purchasing it), through tweeks or equipment changes. I would go as far as to say my love of music has increased with system (including room) improvements. 

1. Compulsively and fanatically build the best audio system you are able to and can afford.

2. Sit back, listen to MUSIC and enjoy your system.  

3. Tweek

4. Repeat steps 2 and 3 without end