I have one, too. If I recall correctly, I paid about $300 for it in November 2009, two years after its release. It was a Buy It Now auction, so I was the only bidder. It rarely comes up on eBay, so I could never tell if I overpaid. I don't think it's worth $1,000.
I think Kevin is right; it's not a popular variant (unless you like translucent figures or you are a completist). I never got the impression there was a lot of demand for it, especially after the brown version was released in Wave 10.