Well his statement has so many "exceptions" to it, that it is probably true. Romex or Cat 5e will carry the same sound, yes, but will it be the same quality. A telephone will carry the same sound but not the loudness nor the quality wanted. Video will be a little better with higher priced cables, true, isn't that what you are paying for. A 12" picture tube carries the same picture as a 60" television, and on a 60" TV would you notice a little better picture. You certainly could overlook the poor picture on a 12" TV.

Some extreme high priced products produce improvements in video or audio that I could not personnaly comprehend, and they would be a waste of money for myself. But, the customer is aways right, if he/she wants these products who is going to deny them the privlege of buying them.