Oh yeah, that’s it. Just buy alarm system wire and be done with it. To each his own.
If the high priced spread makes it worse, should he still buy it?
When I worked in professional studios where innumerable award winning albums and movies were recorded by award winning engineers, the only cable certainty was that any particular cable could elicit "WOW!", "meh" or "blech" depending on the microphone or recorder, console, amplifiers and speakers.
Unfortunately, many High End cable designs are Band-Aids for failings elsewhere.