At the time this screed was written for the Huffington Post, the issue of HDR compatibility as well as the lack of flat, an update to HDMI to accommodate HDR technologies, and the lack of flat OLED models had been unresolved. Not any more; a sprinkling of HDR-compatible sets with HDMI 2.0a were announced at IFA in September 2015, and a flood are expected at CES 2016 – then you can buy a mostly future-proof UHD.
And here’s a similar, more recent UHD HDR screed for the Digital Technology Consulting blog.