Are manufacturer AC cables good enough?

You should know all about trolls, they put the magic in your wires.

Let me blunt: I will no longer feed YOU

The tweaky magic stuff allows you to share the experience of visiting your dealer to talk about your hobby.  It makes you happier, so you believe it works. This is a great marketing plan, because every time you visit the store, is a selling opportunity for new equipment.. 

Do you mean smoke a blunt? 

I don’t turn my nose up at a placebo or expectation bias, as long as it improves the sound.