For what it's worth, I recently visited a thrift store and I was somewhat surprised to see a sizable DVD/bluray section. I imagine there won't be any new releases there, though.
The part I left out was that I also went to a thrift store and found a couple of used 1080p Blu-rays for older films for around $5 each. There were almost no 4k Blu-rays though, and no new releases.
