My perception mirrors @oddiofyl .
I have a single friend who actually spends money on high-end gear. I don't know anyone else who does. In high school I was the only person who had a component system. Same thing in college. Almost the same thing in dental school. I knew a couple of people who actually had a nice system. Decades later I know only one other person who cares about audio and has a high-end system.
When I am asked about hobbies or interests all I get is a blank stare after I respond "Listening to music in a dedicated listening room".
I do have a few friends who like coming over to hear my system, but they are unwilling to invest in good gear for themselves.
Definitely a lonely hobby.
It's only Rock n Roll, but I like it, like it, yes I do.