Myths usually don't drive me crazy. In myths we believe or we believe not. If someone believes in stands for speaker cables for instance.......that's fine with me. If one can stand paying $30.000/2m and it makes him happy, no problem.
The question is how close from FRAUD is selling such staff. I wonder what do you think about that.
Not in the scale like above, but once it happened to me too - a seller tried to fraud me and I recall this experience every time when talking about audio myths. Some 30 years ago, looking for some decent interconnection cables (decent=well done, robust) I dropped into an audio shop and asked a seller to show me some stuff with moderate price. He did but looked very unhappy with that so I asked him if he can recommend something. He glared immediately! He grabbed a cable from behind and showed me like it was a Holy Grail: DIRECTIONAL interconnect. With an arrow on a plug showing... direction? It was plain fraud, so I was stonewalled for a minute or more, standing with the cable in my hand like an idiot in front of the professor and I didn't know what to say. Then I asked him what is the arrow for and the answer was what I did expect: I should connect transport to preamp according to the direction of sound (SOUND!!!). And then he looked at me, looked at my face which probably looked like the face of a mime who didn't get applause, and he explained that sound (SOUND!!!) flows from the source (=transport) to destination (preamp).
The cable costed $100. Looked like $30 cable (IMO expansive) + an arrow engraved on the plug for $5. Which makes it a pretty good margin.
I didn't discuss, didn't argue, just left. Maybe he believed in it? Than was it a fraud or not?