Premium guitar cables? Do they exist?

I've ordered some River cables to check out as I love their speaker cables. Best "cheap" cable is the premade George L's. My boss is a major league guitar guy and he uses canare cable on everything in his rig right down to the tuner feed. Stubborn SOB refuses to go balanced, which I believe is the way to go if the cable needs to be longer than 10 feet. Radial out in Vancouver makes a really cool guitar rig converter to do this.

Hey DC, I've never seen the point in converting an amp. Also wouldn't want to mod any of the vintage stuff. If the Galien is an 800RB it's actually a really cool amp. There was a common mod for the DI section that "magically" cleaned up the whole amp. 400's were just generally pretty bad.
The issue is less with the guitar than the combined length of the unbalanced cable run. 20' to pedals, 6' in pedal land, and an A/B/C amp switch that adds 3 runs back to the heads for another 80' if he has all three going.
I think I want to hear a Klotz, where's Murch?
Mogami / Switchcraft always sounded the best to me, but the quad style is amazing at addressing the length problem.