Shunyata CX cables

It seems to me that this genre of their power cords seem to sell almost upon listing. Any Shunyata guys out there that would know why?

 The Black Mamba CX have a cult following, especially the HC version. They are excellent power cords for the money. But don't get caught up and over pay.

People like the "coloration" that the CX generation provided. I didn't notice the  coloration (manifested as warmth over the entire frequency spectrum), until I got ZiTron cables. I actually re-purchased a CX to see how it sounded after I acclimatized myself to the ZiTron, but found that the warmth it displayed was all to obvious to my ears now.
I've had every generation of Shunyata's cables, by the way.