40 + years, and not one, yup not one that I can find, demonstration by a cable vendor that definitively shows an audible difference, let alone an improvement between good wire (low resistance, reasonably low capacitance/inductance), and their uber-expensive wire.
40+ years, and not one vendor willing to put their money where their mouth is and show, in perfect for them conditions, that they can reliably pick out their uber expensive wire from run of the mill wire.
40+ years, and still no proper blind demonstrations at a trade-show that illustrates the clear, claimed "night and day" difference between their uber expensive cables and good cables (good resistance/capacitance/inductance, and shielding for interconnects).
Thing is, I do know that some of those uber-expensive low capacitance wires are more likely to lead to amplifier instability (audible), than less expensive wires (as Pass and Polk found out). I can find it on a scope in seconds, and fix it in not many more (for pennies), and most good amplifier vendors have already addressed this issue. I know I can vary resistance enough between cables to create a statistically audible difference. I know I can build in enough capacitance to create a statistically audible difference (for some people, most younger than this group). I know that to reduce those differences to statistically 0, it does not require a lot of money.
The ops statement is really nothing but an ad populum
argument. Everyone is doing it (well really they aren't), so it must be right. The vitamin and supplement industry is > $75 billion worldwide, and much of that is near useless (and many of us, me included over the years), fall for it. There are a plethora of things people buy or believe in, vast numbers of people, for which there is little or no evidence, if not evidence of harm.
Having been around acoustics and psychoacoustics, academically, professionally, and in assistance of research, I know how to tweak for a desired outcome, and to be exceedingly skeptical of claims, knowing that in properly controlled comparisons, all those night and day claims, magically disappear. You would be amazed that blind, a lot of audiophiles can't even pick their own speakers out of a lineup of similar sounding speakers reliably ... and yes, you may be curious how I know that.
Now if only there was a way to put this argument away once and for all .. but for the life of me, I can't think what that way would be .....