Yup, quack = cables almost immediately for some. I've got my bias, and will not go there. There's plenty of other 'WTF' stuff being offered that makes snake oil seem like a daily dose like a multivitamin....
Cable stands...try some blocks of wood before you spring for That. C'mon...it could be some nice walnut or zebrawood or teak. Have it CNC'd into whatever shape tickles you....
Magnets...huh? WHY? Sounds like black magic physics to me...
I'm waiting for 'spindizzy' something or another being offered. (See Heinlein's 'Cities in Space' novels, @ Wikipedia). Floating amps might cure Something we're not aware of....yet.... ;)
Yes, I'm trying to be 'funny'. Some seem to take umbrage at my sense of humour, asking if I'm on drugs. Well, currently, No. Got some? *L*