HDR on 1080p sets: Yes! count me in! :D

buying a 1080p display for gaming these days just isnt wise IMO. PS4 Pro and Scorpio are giving us an idea of what to expect next gen, and part of that is higher res games. devs wont stick to just 1080p and improve graphics. they will also bump up the res of their games. even if its just to 1440p. PS5 and the next xbox will probably come around 3-4 years for now. TV's have a long life, buying a proper 4K tv with HDR and low input lag seems to be future proofing your purchase much more than a 1080p device. 

To do HDR properly you need a 10bit bright panel with a wide colour gamut so just adding HDR signal compatibility to a tv doesn't mean you will get a HDR picture. There might be a small improvement at best. Hisense do a so called HDR tv with a 200cd/m2 brightness panel which is half the brightness of some older non HDR 4k sets. Use www.displayspecifications.com to get spec details of various sets and you'll often see some sets using very basic low end panels.

Nice, cheaper hdr tv. Never want a 4K tv, don't watch television.

In the HDR (High Dynamic Range) department, HDMI 2.1 is adding support for ”Dynamic HDR”. This means that HDMI will be capable of passing dynamic metadata for HDR content on a scene-by-scene or even frame-by-frame basis. This is one of the components that make the Dolby Vision HDR format unique but today it requires a DV composer at both the transmitting and receiving end. HDMI 2.1 will be able to transmit it in a standardized fashion.

Basically it allows more detailed gradients by setting the range on a per scene basis instead of using a fixed logarithmic scale for the entire content which is what HDR 10 does currently. It should also remove some problems that HDR content can look very different on different tvs.

Anyone who wants to see a benefit from 4K at 10ft away!

No, they are not broke. They don't make tons of money from their TV divison like that used to in the 90's and before, but they still make profit from TV's. The reason is, because they make high-quality TV's that most people don't care about. Sony's high-end TV have the best black levels, clearest picture (it doesn't matter if it's in a bright room or a dim room), and good durability.

The thing about getting a TV these days is, people just want to get a big TV. And the average Joe's don't care too much about picture quality. In Japan, the mentality is to ask "Is the quality better?", Japanese people don't care really much about bigger size (in fact they love things in small size). But out side of Japan, most people use to think that "Bigger is better". That's how they lost their share in the TV market, they focus on making TV's with good picture quality instead of cheaper TV with big screen.

Good news for me.  I plan on buying a 55" 4k set for the ps5 by 2020. By then the high end 4k sets should be well under $1000 with all the features like HDMI 2.1 included.  Should be OLED with low input lag too.  

I just feel if I jump in now I'll regret it and want a new set with those extra features 2/3 years later. 

I do

When it comes to tv, bigger is always better. It allows you to watch further back from your tv and cause less strain to your eyes.

And stop worshiping japan like they know the best. If japanese can afford larger house, they also opt for a larger screen. And why do you think ppl are so crazy abt oled tv nowadays?