Good link.
Only thing I'm not certain about, he mentions the uselessness of gold plating on HDMI.
I have some gear that had been plugged in for ~ 2 yrs. When I moved it, you could see corrosion of the gold plated end. So although gold may not do anything to the signal on the HDMI, I would think that it would help protect against corrosion for long term use....thoughts??