The performance difference between 1080p and 720p on my computer makes me really question if 4k is worth it. My computer isn’t very good because it has an APU and it’s actually shocking what will run on it at low res. If I had a GPU that could run 4k I’d just use 1080p and have 120fps all the time.
Tldr: Higher resolutions afford greater screen sizes and closer viewing distances
There’s a treadmill effect when it comes to higher resolutions
You don’t mind the resolution you’re used to. When you upgrade the higher resolution will be nicer but then you’ll get used to it again and it doesn’t really improve the experience
The reason to upgrade to a higher resolution is because you want bigger screens
If you want a TV for a monitor, for instance, you’ll want 4k because you’re close enough that you’ll be and to SEE the pixels otherwise.
As long as don’t know that there is anything better you will love 1080p. Once you have seen 2k you don’t want to switch back. Especially on bigger screens.
On the TV I like 1080p still. I remember the old CRT TVs with just bad resolution. In comparison 1080 is a dream.
However if the video is that high in quality you will like 4k on a big TV even more. But if the movie is only 720p (like most DVDs or streaming Services) then 4k is worse than 1080p you need some upscaling in order to have a clear image now.
