Have you people actually tried putting more expensive cables in your system and heard no difference or are you just against the whole idea and never tried it "because it doesn't make any scientific sense", so there's no point trying it?
I was using 1000+ strand OFC speaker cable, when I tried an experiment.
I made up the same length cables using a 0.5mm single strand, silver cable.
You couldn't get two more physically different cables. I heard no difference whatsoever.
I took five very different interconnect cables, including freebies and RA / Kimber cable (£76 for a half meter pair) and recorded the same music, via each onto a 5-track CDRW disc - perfectly level-matched.
Try as I might (and I tried, believe me I tried), I could hear no difference whatsoever.
Now here's the point. I won the £76 cable as a prize. Had I paid for it, I'm pretty sure there would have been an incentive to perceive a difference.
I too have heard the "you need a system that allows you to hear the difference" reasoning.
My systems have always allowed me to hear differences....between CD players, cartridges, tuners, amps, DACs, microphones....you name it.
As I always say Rob, if you or anyone else can consistently, blindly, tell cables apart, (especially if you can do it without struggling) then you have my admiration for a special skill.
In past employment, I was repeatedly told that I was "too honest", too much on the side of customers. It's because I really cannot stand BS....cable marketing is full of it.
As for those fuses, don't get me started.
Edit: Was a while ago now, but during my time at Monitor Audio, I don't think the internal wiring was anything 'special'.