When you're just unwinding in front of a 65-inch screen, you might not notice the quality loss from compression. However, if you're actively watching on a 110-inch projector with an excellent sound system, every little detail becomes clear.
And that doesn't even address the most frustrating part: owning less and less.
I mean, no one needs to become a physical distributor, but it's disheartening that we lack consumer-friendly ownership of entertainment media when it comes to movies. I would love to see something like Bandcamp, but specifically for studios to release their movies to.
this has little to do with the resolution, though. maybe 4k just gets the benefit of being compressed with better codecs.
for me at least, watching shows/movies at typical viewing distance, a well-encoded 4k->1080p mkv is only very slightly less sharp and is vastly smaller to store on the media server.