I'm not really sure why that would even matter. The HDMI signal is digital not analog.
I tried to find the link but it is pretty old, I think it was Gizmodo or someone did a test of the cables between monoprice and monster, and the only signal degradation was above 25'. I really don't remember what they were using to test though and frankly like I said i doesn't matter when you consider price.
Monoprice is awesome for everything. I have bought several things outside of cables (aluminum laptop stand, phone chargers) and have been buying from them for at least 7-8 years.