My intuitive sense is that people don't actually care about increased resolution, but simply know that they're using the "inferior" option, and claim not to like it. I'm not suggesting this is actually the case -- it's just that caring about a sharper picture is foreign enough to me that it's not my most natural conclusion. Logically, I can certainly understand people probably do care about image sharpness. I'm just not one of those people.
While there’s a plenty of content I enjoy watching even if it’s only available in 480, 4K DV content on the big screen offers a completely different level of immersion.
I really like DS9, but it clearly suffers from its format. Even basic things like the ability to make out facial expressions of the cast become more difficult or even impossible at lower resolutions.
I've a hard time to find the exact hardware but check out this video for what I have in mind: https://youtu.be/ZsNKu4umHq4?t=218 - 'too accurate' is a very nice way of describing what LCDs do.
Edit: https://www.amazon.com/Gam3Gear-Scanline-Generator-Portable-... - that's one piece of kit