You may be interested in this topic over on the Gretsch guitar forum.
Consensus:
Total BS to professional musicians who PLAY and RECORD the music we all listen to. Best comment: Expensive cables MAY sound a bit "brighter" if you like that, but most can't hear it and those who do don't like it.
Best liked include Southcreek $10-$13 depending on length.
Also:
Many years ago Guitar Player magazine did a shootout between a lot of cables priced all over the spectrum. Their conclusion was that mega-expensive cables did sound different, though that difference wasn't always preferred, & that a simple Carvin cable, slightly more expensive than the cheapest in the survey, sounded as good as 90% of the others.
(2) A couple years ago I eliminated about half the hum in my system by replacing an expensive George L cable with a much less expensive Mogami patch cord.
Mogami's are expensive--about $65.00--but seem to last on the road with hard gigging and, of course, ROADIES handling the equipment.
Also, brought out the fact that "do you have to rewire your amp and guitar as well?"
Once again, musicians seem to have some answers...
Cheers!