It's very simple. There are always some idiots who will buy expensive stuff and if they are willing to pay for a power cable some 20k dollars there will always be a manufacturer who will give them that. In the end everyone is happy
. Cable is a cable, it's not magic. Just like amplifiers for tens of thousands of dollars. You don't pay for the components and hardware because it costs nothing, only a few hundreds of dollars max. You pay for The Sound...
My cables are also DIY and they are far better than my friends magic audio cables for 500 dollars. That's why he is very angry at me
Off topic... Just bought a Dual 1219 and it's AWESOME, got it for about 170 dollars.