213runnin, I am not an attorney, but I would respectfully disagree that selling a $50 cable for $5,000 and saying it is one of the worlds best would be running afoul of any consumer laws. There will always be someone who purchased the cable who will believe it is the best, and it would take a very ignorant manufacturer who could not "dig up" a couple of extremely satisfied customers.
Now I will say I have no idea about manufacturing costs, but I think that the fact you can get 12 gauge 99% pure copper speaker wire for less than a dollar a foot, and that once you figure in the magic ingredients mixed in with the copper and any added coating to the copper, and then factor in the cost of the fancy cover and a great connector, you still have a reasonable manufacture cost per foot. I hate to say this, but how much R&D does it take to make a piece of wire? Just an opinion.
Two simple points. One, I'm not claiming that selling a $50 cable for $5000 is against consumer laws. I made several points, it's not clear to me whether you disagree with any of those.
Two, the kind of speaker cables we are talking about here are not simple 12 gauge copper. Look up wireworld.com speaker cables, Audioquest, etc., and note their designs which get quite exotic. I have no idea how much it costs them per foot to make some of those designs, care to make a guess?