I'm also shopping for a new 65/75" - and this thread has been surprisingly helpful - thanks to all, esp the OP for asking!
Unfortunately my budget is more like $1k, but I'm still using my old sony projector for 120" movies, and like it (for now) just fine for night movies, but conserving $$ for eventual replacement of it IS a thing, too. (It's nearly dead silent for most scenes, BTW.)
My biggest problem is that -for using as a music server running JRiver - I can't quite make out text w/o glasses or binocs (!) on the (crappy $150) 55" screen I have currently, and would like to have better readability for that use, so a bigger, brighter screen is in order.
Most of use will be daytime PC plus a little OTA TV, and occasional movies in a very bright sunny room (when the sun is shining and it's not -20F out).
So the comment about the LG Nano Cell have surprised me, and will look harder at those options.
I had my heart set on an OLED screen, but now wonder if it's 'too much' (ie too fine for test readability)for this purpose.
PS. The screen size is roughtly limited to the size of my subwoofer, since it's on a lift that hides it behind that most of the time, and the projector (1080i) displays on the 15' wide ScreenGoo wall behind it
Viewng listening distance is 10-12'.
I'm still running a Panny plasma in the bedroom and it's STILL fine, tho black levels have gone up a tad, tho electric/'heater' costs are getting more and more noticeable as I tighten down on other elecrtric uses!
Another option to consider I suppose is to 'stage' a handmedown process, where I get an "ok" 65 for the movie/music room, but eventually move that to replace the Panny when OLED prices get 'more affordable'....
Sorry, mostly rambling, other than curious about what others might have found about PC text readability on large 4k format OLED vs LED/LCD screens.
Thanks!!!