Expensive Cables, Wires, and Power Cords to make a huge difference on your wallet and that can affect your listening experience. Because you spent so much money you're going to hear things you never heard before. Like your brain telling you you should have never spent that much money on snake oil.
Very true!
Paul McGowen frequently uses the phrase snake oil. And he's a major seller of such.
That's why I don't watch his channel anymore and it (selling snake oil power cables conditioners) affects sales negatively.