My GF (who I live with) is not into audio at all. When I met her, all she had was a boombox from an ex, so she sees almost no value in high performance audio.
Recently she was with me when I bought locally a metacarbon cable for $1200 (I told her it was $1000) - but hey the retail is $3000. "You spent $1000 on a a cable?" At that moment I felt really foolish, seeing her side of it.
Of course when I went home and heard how much higher resolution it made my system, I knew it was a good purchase.
About 2 weeks ago I got a new Raven One turntable delivered and set up. The Graham arm had been here in a box waiting. I told her the dealer was coming in to set up the arm. (The dealer has his wife with him so it was a bit of a distraction as they taked, but we were all in the living room) I thought for sure she realized I had gotten a new table, and later that night showed her something on it.
"Is that new?" she asked - damn, had I kept my mouth shut she never would have even realized since both my old and new table are black (but totally different shapes)
Last night I was listening to the new table/arm/cable and realized what a huge upgrade in sound quality it was. Even so, I really dont think most people would be able to tell, or if so wouldnt really care very much.
So I realized that people like us are unique in that we can fully appreciate the sometimes realtively subtle changes in reproduction. Why shouldn't we have the best gear we can (or can't) afford? Who better to appreciate it than us?
Life is short and if this relatively safe hobby brings us so much pleasure, then why question it? (though I often still do)
Now I how to figure out what I'm gonna say when I want to upgrade my 13 year old tube amps for the latest version ones. That will be a noticable change. (the new phono stage stage I am getting this weekend is black with no controls - so that should go unnoticed.)