Why not?
They're expensive as shit.
They're not that expensive. CDs albums were something like £15-£20 in the 90s. I was listening to a new album today, and I looked it up on a whim since I bought two albums from that band on CD in the 90s and one on tape, and the vinyl is £15 plus shipping so, realistically under 20 quid with no fuckery. Probably around £18.
It's a good bit less than half the price that I regularly used to pay for music when I was at school and a student.
Sure you can get music cheaper still, but which I mean a tenner from Amazon as MP3s.
I wouldn't qualify that as "expensive as shit".
As for why? Well, why not? I like records. They're big and weighty. They come with better album art that you can peruse while you listen to the music, completely disconnected from the internet and indeed anything digital. I like the click-hiss-crackle anticipation of the disc starting. I like that it basically plays from start to finish so there's no shuffle, playlists, etc, you just listen to the album.
Well unless you have a stacker and a bunch of 45s which I do and then there's the fun of selecting the next playlist while the current one is playing.
Records are fun. Maybe not your kind of fun, but fin nontheless for many. Just ignore the morans who talk about audio quality, richness and (even worse) jaggies.
Also, let's just take a moment to remember that the RIAA are a right bag of festering dicks.