The success of the audiophile wire industry is based entirely on the utter ignorance of the market. Notice that whenever these manufacturers advertise their products, they almost invariably discuss qualitative issues, they rarely if ever give hard numbers to their theories let alone put them in a technical context that will indicate to what degree what they say is significant. And so the whole thing is based on hope and fear among potential customers. That is why I think the whole thing is a fraud. Before this cottage industry got started, nobody thought audio equipment customers would be stupid enough to believe any of this. They were proven wrong.
http://www.realhd-audio.com/?p=5565