Basically that's the mood in the industry for the past 5 years or so.
I am using a 31" Cine 4k 10-bit monitor and barring the very latest M.2 PCIe SSDs, I can't even get realtime playback of uncompressed 14-bit RAW 4k@24fps footage on a top-end system (60fps is a sci-fi). Not to mention a top-end NVidia GPU won't allow me to smoothly run any recent game in best settings in 4k or UHD, experiencing occasional signal drop-outs while driving 4k x 2k @ 60Hz via DP or miniDP with expensive cables, slow progress of CPU performance improvements since 2004, and indeed it looks like it might be the case 8k will be the final digital TV resolution unless some dramatic technological change occurs. Cinemas with their large screens seem to be doing just fine with 4k.
My 55" UHD TV shows noticeable improvements only when I stand closer than 1.5m, subconsciously I have a feeling of a better picture quality under 3m distance while driving 4:4:4 UHD@60Hz from a computer via HDMI 2.0 (YMMV)
