Are interconnect cables worth $15,000?

I believe that 99% of all systems will benefit more from a $15,000 component upgrade than a $15,000 interconnect.

Or you can add room acoustic treatment or a better house with a more suitable room to that list - I agree wholeheartedly.

IMHO $15,000 cables are nearly the most expensive inflexible (poor value) tone control that money can buy but I respect those with $15,000 Cables who claim to hear fantastic differences....so to each his own...audio is an emotional/perceptual thing; to some extent high prices provide comfort (compared to radio shack quality) that no stone is left unturned...no compromises allowed.

Who is asking,
is what I want to know.

Everything is worth only what you are willing to pay.

No. Not in my universe.

I would say definitely, that is if you listen to music in a dust and noise free perfectly acoustic vacuum and only spin a record once before tossing it in the trash....and of course, you maybe run a hedge fund and just have lots of cash sitting around. I wouldnt recommend re-financing your house for them though.