To add to your point, I recently tried to pick up some of my favorite movies from when I was younger, only to find that they were “out of print”. Some of these may not be lost to people searching around online because the directors are well known, but you’d likely have to search first.

Inland Empire - David Lynch / The Dreamers - Bernardo Bertolucci / Bring Me the Head of Alfredo Garcia - Sam Peckinpaw / La Luna - Bernardo Bertolucci / (I’m sure there are many more, these are just a few that I’ve hunt down on eBay this year)

The last two on this list, I watched because I made friends with a video rental store manager, who loved to recommend movies for me. The store itself often did not have things he thought I should watch so he would bring them from home and lone them to me personally. I really miss that sort of thing.

I do have a good used bookstore nearby though, and the last personal recommendation I received led to me reading every George Saunders book.