There is a really cool site where you can purchase rare and exotic geckos if you don't mind dishing out the cash for them. But you should really take a look at this and I found the highest priced one is the Rhacodactylus leachianus henkeli and it goes for $650,wow!
www.gobalexoticpets.com

what is the more rare gecko thats alive?
Im interested in seeing how much the price goes up on them.

That's interesting, but neither can nor want to pay hundreds of dollars for a Gecko. I suppose I'll be stuck looking at pictures of them.