Just a mention for what it's worth ...
On April first 2018 (almost a year ago) Oppo Digital division stopped manufacturing Blu-ray (4K) players. Just over a week ago Cambridge followed in the same steps, they won't make a 4K BR player anymore. And, just few days ago Samsung stopped manufacturing Blu-ray players and 4K Blu-ray players; no more that's it, they exited that segment for good.
Of course it's always about money. Most people, the vast majority of the public, they stream and download online, from their Netflix 4K subscription, Amazon Prime 4K Video, Hulu 4K, Vudu 4K, etc. The 4K Blu-ray business (best picture & sound) is a niche for the hardcore fans like me.
On 4K TVs; they are everywhere and they cost less (65") than our 20" cathode ray Sony TVs of years ago. Those were approsimately 330 interlaced (@ best), roughly forty times less resolution. I paid $1,000 for my 19" Sony Trinitron. For that money you can buy a 4K 75" Sharp TV.
I love my old LPs, turntables, TVs, old Plasma TV, old projection TV, Leica cameras, ...it's just that I like more the cameras today and newer 4K UHD HDR10 Dolby Vision TVs...OLED & some LED.
I like moving pictures, films, like Blade Runner (Ridley Scott), Unforgiven (Clint Eastwood), Saving Private Ryan (Steven Spielberg), The Matrix, Dunkirk, Interstellar, The Martian, Blade Runner 2049 (Denis Villeneuve), Planet Earth ll (BBC documentary), etc., and in 4K HDR they are that much more attractive, very. I can see it very clearly, Mike Lavigne can see it very clearly, many 4K viewers can see it very clearly. Not all 4K movies are created equal, but the best among them are truly better than their regular 2K counterparts.
Out of the just few ones I mentioned above, The Martian and Blade Runner 2049 I also have in 3D. Those I like too...I feel sad that they are only in 1080p.
Lawrence of Arabia (Sony/Columbia) is not on 4K Blu-ray, yet. So a 1080p Plasma TV is just fine still.
Can you stream it? Is a plasma TV enough to enjoy the best?
It all depends of who's asking and who's answering.
I have no illusion.
"While we’re on the subject of Sony, this is both good news and bad news: Sony has recently made Sir David Lean’s Lawrence of Arabia available in 4K... as a digital exclusive (on iTunes, Amazon Prime, and elsewhere). To which we reply: WHAT THE HELL?! The download reportedly doesn’t have HDR, but so what? Sony... what the hell are you waiting for?! "