"With any long run of an HDMI cable, quality manufactured cables can play a significant role in successfully running HDMI over such longer distances"
I guess that is exactly what I was emphasizing on. Quality matters. However I didn't mean (minimum) quality (that works) is expensive.
Search google images for HDMI sparkles or grains or flakes, you will see some examples. Or check this out
All HDMI Cables are the Same! Or are they Full Test | HD Guru - Part 4373
I reiterate, I am not saying expensive cables are better. Cheap cables might cause above said problems in long runs of 30 ft +. Yes it also depends on the send/ receive interfaces too.....its not possible for one cable to look better than another. It either works and you see 100% of the signal, or it doesnt work and you get nothing, sparkles, snow, or flickering.