Wouldn't a system look cheap to your rich friends if you used non-designer cables on a six figure (or much more) system?
There is a very small difference in the handling on my sports car with the absolute best tires I can get, and no the girls don't care. But why do we need to impress the boys with our toys?
That is not all that matters, but it does to me.
Besides, there is this one switchback over a railroad track; there is the Dragon at Deals Gap; and, there is the autocross track....
...and there are the fellows who spend all their money on their cars who like to hear my music.. Tee Hee.