I don't believe in power and speaker cables BUT inter-connects have even had my wife take notice. On the otherhand, $15k can buy some nice components and upgrades. So, no, I can't see going that far. If you need to spend that much you should donate to the Phili Children's Hospital or The Smile Train. There is more to your existence than a .01% in sound improvement.
Are interconnect cables worth $15,000?
Has anyone experienced the ecstasy of the revelation made to their systems by the insertion of the new 'super' interconnects like Tara Labs Zero and Nordost Odin?