Lol! Don't fall for the dealer's nonsense.
Learn how to terminate your own power cables, as I did, and make them the exact length to avoid the cable jungle. I have power cords from 1' to 5' in my system and to my "golden ears" they all sound the same.
If you don't want to terminate your own, there is usually a guy in your town who will do it for you for a reasonable fee. Many manufacturers will also provide custom lengths.
Learn how to terminate your own power cables, as I did, and make them the exact length to avoid the cable jungle. I have power cords from 1' to 5' in my system and to my "golden ears" they all sound the same.
If you don't want to terminate your own, there is usually a guy in your town who will do it for you for a reasonable fee. Many manufacturers will also provide custom lengths.