Why are monitor DPI's are getting worse?

I'm sitting in front of a 27" 4k screen right now (approx. 160 dpi), at a distance of around 50 cm. Personally I find this absolutely sufficient as everything is very crisp. I also have a 16" Retina OLED screen that I use, and while it's arguably much better than my monitor it's mostly due to the higher refresh rate and better contrast, and less the higher resolution, which is mostly imperceptible to me.

So I'd say 120-180 dpi is sufficient and pleasant, but individual preferences can vary. I'm not that young anymore so I use a bit larger fonts and display scaling factor already. I have some younger colleagues that look at 8px fonts on their 4k display, which would just kill my eyes. I guess for them it makes sense to have higher dpi.

LG still makes a 24" 4K monitor[1].

Perhaps you meant they used to make a 22" 4K monitor? I believe they did this to meet Apple's guidelines of a "Retina" display. It was apparently discontinued in favor of the 24" model.

There's also a bunch of 27" 4K monitors for sale. Tons.

1. https://www.lg.com/us/monitors/lg-24UD58-B-4k-uhd-led-monito...

Hi-DPI TVs don't really make sense when you're watching on your couch, >10' away. On the contrary, small phone displays are getting pretty great: iPhones have finally moved away from 720p across the lineup, and 1440p is starting to become the standard for luxury laptops. I'd say, things are going pretty good.

Why wouldn't you want 32" of space instead of 24"? Bigger pixels make it easier to see the fine details, especially after you hit 40. Personally, I've got a 32" display that's native at 1920x1080, which is about as small as pixels need to be, for me. (I'm 58)

Only Mac users want >200 DPI; most people just think bigger is better.

I don't know but there are two "are"s in your question, which is not what you probably intended. :)