I agree to part of what you say. But you contradicted yourself.
There is a pretty vibrant and strong market of low cost, high quality audio equipment. Even a Fosi integrated amp for $89 with 2 x Sparko Opamps that are $129 a piece makes for a fantastic 100 watt amp. And that Fosi accepts bluetooth from a phone and plays very good music. Good enough Jays Audiolab was looking around for the Gryphon or Boulder amp in a recent video. Only to find it was a tiny less than $300 Class D Darko amp.
Beats Sold for $2B. Thats a $79 to $300 headphone. Headphones are part of Audiophilia. Big market. The smart players are in it. And making a killing.
Even at the shows, there are more and more small manufacturer that are showing complete packages under $10,000. Now that is still huge money to most people. Even Sonos gets high on their price to value proposition.
The name is alluding me at the moment, but I bought my mom a set of self powered speakers designed to sit on a shelf and stream direct to them or take a RCA. $350. They were at the PAF last year. They were set in a room on a stand. With or without a Sub. Fantastic sound. As good as anyone who just wanted to listen to music could want. With a sub, less than $1,000 compete. Hook a Rega Planer 1 to it and you have a wonderful TT based stereo for the masses. And it may actually sound better than some audiophiles systems that are not set up correctly.
I hear SS amps as enhancing/coloring the bass. Thats part of why I don't like most SS/dynamic driver systems. A good tube amp such as I have is faster and sounds more like a snare, horn, piano or violin. I have tighter, faster bottom end. SS has more power, but it comes with a sound of its own. SS sounds sort of digital like to me. Vinyl is necessary to add back the natural flavor. So, again, were back to liking something for the distortions it is adding.