Maybe you should stop insulting and bother to read what I actually said, since you just admitted I was right the entire time.
FWIW HDR is a bigger deal then the HD to 4K advancement. HDR content is very noticeable. The big problem with 4K and HDR is content and delivery of said content. Streaming is so compressed that the picture quality of a 4K stream is about what you get with a Blu Ray disc with mediocre audio.
The only way to get the full effect is a UHD DVD. So the odds are you have never actually seen true 4K with HDR content. It is quite spectacular if you do see it.