They have/had 6' stereo cables with 48V or 72V power packs, one listed for $4999.95, the other was $6999.95. There's no mistake in the price I posted. I have seen the dealer price list- I won't disclose the cost, but it's a 'get rich quick' scheme for everyone.
A company I worked for switched from Munster Cables to Audioquest and that must have looked really good from a financial standpoint because they sold more $ in Munster Cable than any single store company in the US. They have a display on a wall with various cables, with the price for each- if $1500 for a 6' long HDMI cable seems reasonable, I don't know what to say. AQ claims that the batteries improve the audio quality. In a cable that passes ALL digital signals and a bit of DC, but not from the batteries.
I began work designing and installing a system for a customer in late-2006 and he decided that he wanted a tube amp for the speakers in his living room. OK, I found a way to make that happen, as well as allowing listening to the same music in all rooms. He asked about audio cables and at the time, I hadn't 'listened to' various cables in critical listening tests because A) it takes a good amount ot time, B) I wasn't going to pay for a bunch of expensive cables and they're not returnable and C) it's hard to find a place & system for this. On the recommendation of a sales rep, I ordered a set of Ixos cables with XLR ends, because the preamp and new to him power amp has that kind of jacks. I also have cables with these, but they're much longer- this should make zero difference, based on the design and intent of the circuits and equipment which requires them.
My Audio Technica mic cables don't have a brand name for the actual cable, only showing 'Audio Technica' but the Ixos disgusted me. They came in a very nice box and they had no-name XLR ends, braided rtanslucent Nylon (or whatever) sleeve with one white, one black and one green wire that were braided. No twisted pair at the center, no foil shield, no separate drain wire tht connects to Pin1, which is used for grounding. The AT cables came with the microphones I bought, the Ixos cables were $400. I could have made them for ten bucks and yes, I can braid.
I listened to both, instructing the other person to change them, or not, so I wouldn't know and he couldn't tell me if he changed them- he had worked in audio, so he understood how blind testing needs to work. Same songs, same audio level, no difference that I could discern. I offered to return the cables when the customer asked if they were better, but he just said "At the end of the day, $400 isn't worth worrying about". I read the rep the riot act the first chance I got (not too bad, but he got the point).
IIRC, the movie 'Citizen Kane' has a line- "Making money is easy if all you want to do is make money".