Mica,
With Monster Cable MI cables going for upwards of $150 (Studio Pro 1000 @ 21ft w/ straight 1/4 phone plugs), and selling fairly well, there is definitely a market for ultra-high quality premium Alembic instrument cables. They offer a lifetime no-nonsense replacement policy as well (add up all those cables you've purchased and replaced because they went bad, and this pricing starts to make sense). I just bought a fairly expensive state-of-the-art Eden bass amp rig, am anxiously awaiting my new expensive custom Alembic and I want the best possible cables available to make them sound their best. So what if it costs as much as a cheap Sam Ash bass? We're talking peanuts compared to my overall investment! Coming from the world of ridiculously expensive high-end audio (hi-fi), there are MUCH better sounding cables available than Monster (i.e., MIT, Kimber, Cardas, AudioQuest, etc.), albeit at MUCH higher prices. As a bonus, like the majority of the world's best hi-fi gear, most of this stuff is also AMERICAN-designed and produced! Unfortunately, the vast majority of the above serves only the limited boutique high-end audio and home theatre market segments. Having said that, I'm fairly sure that one of them could adapt a high-end shielded jacketed cable with either 99.99% pure oxygen-free copper and/or pure silver conductor(s) and premium dielectrics as currently used for interconnect cables (i.e., used between pre-amps and power amps, etc.,) for musical instrument duty. All that is needed is a design for a super-premium 1/4 connector to compliment same, as none exist at the moment.
PHEW!...there's my two cents, LOL!
Regards,
Kevin