Well sure. 5 1/4" floppies have been taken away by technological changes. There are almost certainly file formats that are unreadable without some serious archeology.
The technology required to listen to a record is stone-age simple compared to even a magnetic cassette, though, let alone a digitally compressed .mp3.
The point being that if you own a hard copy of media, that media can always be read (if the hard copy is still viable), given the right technology. If you own a license to stream a piece of media, as soon as that industry actor goes belly up so does your license.
Given vinyl records last longer (when properly cared for in an archival setting) than a hard drive or magnetic tape does, I'm pretty certain neither you, nor I, nor our great-grand-children will live in a world where you can't gain access to a turntable.
There may be fewer manufacturer choices than there were four decades ago - but there are also more (and more labels pressing for) than there were only a decade ago.