At least this gadget doesn't cost $10K, but who are they kidding? For only $959, this black piece of metal in a relatively nice frame is suppose to improve the sound of your audio system. How does it work? It seems like magic. You just place it near your gear. You don't even have to plug it in. At least it doesn't waste any power. The Blackbody from LessLoss (I think they also sell high end cables), "greatly enhances your audio playback experience by addressing the interaction of your audio gear's circuitry with ambient electromagnetic phenomena..." and, "The Blackbody takes advantage of the quantum nature of particle interaction, and is therefore able to permeate metal, plastic, wood, and other barriers to affect the circuitry inside your components. This altered electromagnetic influence results in profoundly improved sound quality." These quotes are right off their webpage.
Who buys this stuff? After reading the rest of their webpage which explains how it works, I'm certainly not convinced. They try to imply that there's some real science behind this, but that's laughable. They even suggest several Blackbodys can be used to maximize coverage and effectiveness. Yes, of course, the more, the merrier. I only wish they were selling it on Amazon, so I could read some humorous comments and reviews.