We are having absolutely no problem running 4K, 60Hz, with the 35 foot, 8K cable (@ $41) and like I said, I run it through walls and baseboard and it is rated for this. I’m betting many of those high priced cables are not.
I noticed a slight difference in the plug between this and my other HDMI cables in that on this cable the internal portion of the plugs have a red coloration to them.

