And it all seems pretty hard on the disks. I've had a few disks arrive broken, including one just recently. I know that sometimes they have studio agreements to burn their own custom disks, but sometimes they're just paying full retail price.
Netflix got rid of much of its back catalog of cinephile movies a long time ago. I suspect that they just stopped replacing them when the physical disk broke. I don't know how big the market is for people who want obscure movies; I'm sure it's not zero, but it's probably not enormous.
I discovered that I'm just not a cinephile. I would love to love old, great, less-well-known films, but I just use TV these days as mindless distraction. It's the cinephiles (and fans of other material that doesn't get picked up by streaming, like some anime) who really lose out in this.
I think old movies will find their way, there is a relatively small number of them but there is an awful lot of TV (also probably just awful TV) that I have a very hard time finding someone wanting to pay to have it streamed. Other than some pop culture memories and nostalgia, I don't know that there is a great loss; the really high quality content tends to live on. It doesn't feel right. When Netflix DVDs are gone, there is a lot of stuff that I don't know where you could find it.