Is there really a significant sonic difference when using normal "Monster" or "______" (fill-in-the-blank) 12 - 14 guage speaker wire vs. the "hi-end" Tara/Vampire/Canare/Audiquest etc? I know people on both ends of the spectrum who SWEAR by hi end speaker wire and those that SWEAR by Home Depot el cheapo 12 ga. Has anyone ever done a comparo between "the cheap stuff" vs. "the good stuff"? Is it psychological or factually based? I'm really not interested in spending half of my system's total cost on cables and wires but if it will make my system sound 10x's better then may I'd consider it. What sparked this question was the fact that the store I may borrow the B&W 601's from insists on bi-wiring AND running "better" speaker wire than my run-of-the-mill 12 ga. Any hardcore believers on either end?