Like the previous poster, I just switched from Cardas: Parsec to Clear [digital SPDIF]. And I upgraded my analog interconnects to Cardas Clear [RCA] as well. So, my magical bias tells me that I have better stereo imaging, more detail, and more [and tighter] bass. I even found improvements, especially in the bass, from changing my $3 Lowe's wall outlet to the Powerport from PS Audio...
As discussed almost ad infinitum on this site, most of what we post here is our opinion...or, I would say, our opinions about our perceptions. Either we actually do hear a difference when switching out equipment, or we think we do ~ this seems to be the crux of the controversy. But I started out with what I might term "reverse confirmation bias": I REALLY hoped that I would not hear audible improvements when upgrading cables. Who really wants to spend the money? I was oh-so-careful with the packaging, because in the back of my mind was "I'm going to return this for a refund when I don't hear a difference". But I couldn't lie to myself...whether it was the CD player upgrade which cost 4x what my current one had [my first foray into sonic upgrades] or my Synergistic research interconnects [in a different system than the aforementioned Cardas cables], I have often, but not always, found that spending more money meant sonic improvements..or, occasionally, a move in the wrong direction...sometimes a cable or component just doesn't work well in the system you plug it into...or, it's overpriced junk~ yes, it happens.
So, you psychology majors [I have a psych degree, so don't bother me with the ignorance argument], I'm glad that you're happy with your zip wire and red/white interconnects! But stop with the supercilious allegations, and let us hear what we hear...or, as you believe, what we think we hear. Save your money, enjoy your systems, and leave the rest of us alone.