My son uses a 720 plasma and sits about 5 feet from it and has zero complaints. My 1080p plasma in the bedroom looks absolutely fantastic to my eyes and no LED can match it for watching hockey. I have a LED for movies that is 4k and really unless you sit really close there is no real improvement. I have not made the jump to HDR and i doubt i will ,its like buying $10g speakers the difference just doesnt justify the price tag. I find that many new tv's look fake or artificial,maybe i am just too old school. Unless i win a lotto so i can have a PJ i dont see anymore tv,s in my future. If your feeding your tv or pj with hdmi then it is doing the upscaling and a more expensive BD player will not make any difference to your picture.
