4K TV's are where the manufacturers are putting all their focus into now, they get the latest and greatest tech... I bought into the HDTV race when 1080P was fairly "new" and 720P panels were the affordable option and 1080P content was minimal.
I still have the old 720P TV, even though it's over a decade old, but it's out in the shed for when I am entertaining.
Really wish I splurged the extra and went 1080P due to how long I have retained it.
With that said, you can have two TV's using the same identical panels... And they will have vastly different levels of image quality as both have different image processing, read reviews. Don't be afraid to spend a little extra for 4k.
In the end, there might not be much in the way of 4K content right now, but there will be eventually... And TV's aren't something I would replace every couple of years.
--::{PC Gaming Master Race}::--
