So I saw Jeff Beck has a Klon Centaur. A quick look on ebay indicates sellers are letting them go for $1.000 - $1,499.99

Insane.

What's so special about them?

I am bit intrigued now. Are there any good Klon Clones that are very similar sounding for less moolah? Not that I need any more pedals, but curiosity is taking over my sense of judgment.