Anyone arguing against 4K simply hasn't experienced 4K. Simple as that. It is night and day compared to 1080p, from any distance.
I've got good quality 4K monitors right here and one of those cheapish 4K TVs that's all the rage these days, and it's not undisputable at all, unless you got a native 4K source and a GOOD top end 4K monitor.
This is not the case for nearly all the people who actually comment here about 4K, since they're probably only 5% of those sales. Most 4K sales are those bargain bin low end panels.
The picture on my two 4K computer monitors (LG 27MU67-B and
LG U32D970Q ) are wonderful with a native 4K source. But, if I put them in HD mode and walk away, with the same source, the difference is small (those monitors have a huge gamut
But even with those native sources, the cheap panels a really not in the same league with the monitors.
On the cheap on sale $350 42 inch UHD TV though I bought for the guest room the difference is major.
At a distance, of course I see a difference between my 4K monitors and the 4K TV; and it's not from resolution.
Considering the LG U32 cost $1000, that's not so surprising. The LG27MU is a very good value at $500, go buy it!
Even though my monitors are fine, for video viewing though,
LCD's in general are not so great compared to OLED or even PLASMA.
I've got a lot of different type of TV's around the house 60 inch plasma, cheap 4K, 3 mid range 1080P LED TV's, and cheap LCD TV's all over the rest of the house (even the garage). Even have a HD tube TV from 2002 in my basement (still working and fantastic but big as a house...).
4K OLED with native source... yes, that is tremendous and one my friends owns one
and that's the one I want to own in a few years. Right now, the big ones are pricey.
People dismiss the source all the time as a source of major difference
and considering that's what make the TV terrible in most case, I don't really get it.
OTA 1080P beats down hard on any 4K stream.
Getting a 4K stream and downscaling it to 1080P still gives you a better image than the 1080P
stream because those 1080P streams are soooo bad. If you could get an equivalent 1080P stream, a significantly higher bitrate than what's normal, the difference on all but the best TV's would fade away.
So, the biggest advantage of the 4K TV's is that allow to play to 4K streams directly.
You're still not getting a really different experience than 1080P unless you've tried native content, which is very rare still, on a top end 65 inch and up OLED 4K; that is mindblowing.