We all know and can't dispute that SR and other uber expensive cables can do magic with your systems however most of us aspiring audiophiles simply can't afford them...
IMHO, a lot of the "magic" vs snake oil discussions are system dependent.
When I started , I was very cynical of costly speaker cables. Then I heard the difference they made in a mid tier system.
To me, cabling is very important. Cost justified ?, that's a slippery slope.
One of the biggest cable discussions revolves around premium ether net cables ( its just "bits" ,etc. ) My new streaming system was installed with a basic ethernet cable. Selling dealer said I did not need more. I had a used mid tier SR ethernet cable ( $350.) sent out on trial. ( just curious)
Guess what --it never went back. The difference was very obvious.
I believe in good cables especially with good electronics. You don't have to go to top of the line stuff. Buy used, for sure. Experiment, no magic bullet and each system will sound different with different cables Just like speakers--you want to find the sound right for you.