There is no benefit, unless you sit way closer than normal to the TV. At a normal 10' viewing distance, you can't distinguish individual pixels on a 1080p screen unless it's like 65" or more. Which means you will benefit very little (or not at all) from a higher resolution.
Because "bigger means better"
TBH HDR is a much bigger deal than 4K. Also, on consoles 4K does matter more, as the more powerful Xbox One X and PS4 Pro are able to run games with higher graphics detail (although you don't actually need to be playing in 4K to benefit from that)
You will get the point once you get one. I was blown away with my PS4 Pro and with some 4K movies on the 4K tv. The details are absolutely stunning, not to mention HDR makes everything even better.
My friend has a 4K TV, my opinion stands for now. There aren't enough things that make use of 4K. Heck, in my country most tv channels aren't in HD yet, there are only two or so 4K channels, and they're boring channels at that.
As for movies, I haven't seen many 4K movies available either. ATM I don't see the point in getting one. Not enough benefits.
i used to go out to the recycling center every couple weeks and look at the crts and other electronics people would drop off. Usually screens were broken or severely scratched from being tossed around. Did find a good one here and there, but never anything like a 1080i widescreen crt.
I have a few of those boat anchors in my basement I tried giving away but no one wanted them, So anyone close to Columbus, Ohio area that wants them, (26", 2x 19") please come get, for free.
Is it piracy if it was released for free? Not in my opinion, but I also think it's not piracy if buying it isn't owning it, and it's not piracy if you can't buy it from the original creators anymore.