The cost of LP's and CD's - an observation

But the truth is that most people, no matter their generation, simply don't care enough about fidelity to go further than a good sound bar. The idea of sitting down for a listening session without talking is the purview of what we do on this site, not the masses.

It's like a neighbor I once had who was completely into the video aspect of home theater and who was gushing about a new projector he had installed and interfaced with some complex software. I mean, i enjoyed watching movies and appreciated the picture at his place, but was just as content watching blue-ray on my home system.
Also, there are many, many millennials who have gotten into vinyl; however, even though many intro rigs sound decent, they're going to show their limits. And choosing between Spotify and a sub-$200 vinyl set-up thus becomes a no-brainer.

Speaking of which, how many people under 30 still buy cd's?

Many people, like me, still love their CDs and they can be had very cheaply. Used LPs are ridiculously expensive and prone to defects characteristics of vinyl. Many of the domestic LP pressings were simply awful (Westminster, Angel, Columbia, RCA, etc.) and back in the 70s and 80s we preferred imported pressings like DG, EMI and many exotic import labels. The remasters CDs of these old recordings are vastly superior played on a modern digital system. To me the LP popularity is based on pure nostalgia because messing with a Thorens TT, an SME arm, and a fine cartridge is very pleasurable. I know people who still swear by Telefunken 78s, and with good reason. I am trying to resist a Revox A77 open reel deck, which is really silly but they are great things to have. But digital rules, no question. 

Given a good price, I'll buy the Revox A77; digital can't touch it.

@rtorchia"
"To me the LP popularity is based on pure nostalgia because messing with a Thorens TT, an SME arm, and a fine cartridge is very pleasurable."
Careful there with that broom you're using for the sweeping generalization. I'm not sure what you find very pleasurable, but for me it's the sound of vinyl, not messing with the components.

"But digital rules, no question."
For you. Not for everyone.

I find nothing nostalgic about something I never had or heard before, and that's high end analog.