Many people and so-call videophile/audiophile just don't care about quality. As long as they get signal, they will say the cable is working great.
They all say cable is just cable and it is a waste of money to get the more expansive one. I really don't believe that so I purchased the $7 hdmi cable from monoprice. Bring it to a local store and compare it to their Monster 400 series hdmi cable. The Monster 400 win out a bit but it cost a lot more than $7.
The store does not have the higher grade Monster or other brand names like Audioquest, Nordost, Harmonic Tech. etc. I am sure those more expansive video cables (better shielding, silver plated conductors, better material) will beat out the monoprice cable no problem. It is just whether you want to admit it and pay for it.
I really believe in cables make a different, especially the audio inconnects. To me, I think it is a bit harder to detect the different in video than in audio. So there is a lot of talk on the audio cable only.
In my case, the US$7 HDMI cable from Monoprice outperform the component cables (US$100) from Zu.