I stopped caring about resolution. I won't be bothering to buy 4k etc. on purpose. My screens break. And 4K is the only thing available, I get it. But I'm done with the buy over and over again cycle of resolutions, movies, TV shows. I wonder how many more HDMI cable revisions will tech go through.

I still prefer 1080p, but I'll be moving up to 1440p since G-sync 1080p monitors seem to lack what I'm looking for and the 1440p models do.

Also:

4k user here and would adopt 8k when costly effective if there was content for it, 4k still doesn't have much.

Triple monitors was amazing for gaming. It's just not worth the expense unless you are going to be using all those panels for tasks other than gaming.
You literally need the best GPU's money can buy every single year (Remember, 7680x1440 is higher than 4k). And you need several of them if you intend to be a serious PC triple-monitor gamer.
I was often running triple Radeons... And some games I still couldn't max out. (This was the Radeon 5000/6000 and 7000 era.)
But when a game works and worked well with Eyefinity, it's immersion was next-level.

Can't say much about ultrawides, never used or seen one. But the caveat with those just like with triple monitors... Is that it's not really great for 4:3 or 16:9 or 16:10 content such as movies.
With eyefinity, movies and such would only display on one 16:9 panel at a time, unless you want some serious funky warping/stretching of course. - AMD will allow you to set your default display for such content too, so when watching a movie it would turn the two side screens off.

You would actually need three screens across and two screens high to get a proper 16:9 scale. And then we start getting ridiculous with costs.

The ultrawide would have big black bars on the side with the video centered, which IMHO is a waste of screen real estate, you might as well start looking towards 32-43" 4k 16:9 monitors if you need some serious workspace.

16K or bust.

I'll upgrade eventually when that becomes more affordable like 4k has.

Hell to the no. Can the eye even distinguish between 4k and 8k

Honestly 1080p is fine. You need gigantic screens to actually have visible returns for 4k and above. It is silly tbh. Our eyes can hardly tell the difference at this point.

To see the difference. You need to have your face 10 inches from the screen.

No. After 8K everything higher is a waste of time. Sooner or later the majority will force a stall on res size. I'd rather companies put efford towards transforming TV screens. So we can physically change aspect ratios. 0 black bars on all content.