Long time lurker, first time poster :)
I've been waiting for the CatGenie to go on sale, and look forward to giving it a try. It's usually $449 from what I've seen (typically "discounted" from $479 as website shows).
Taken from their website:
The CatGenie is the world's first self-washing litter box that does the dirty work for you.
Enjoy :)
Edit: I was able to select Free Shipping at checkout, perhaps due to being in a Metro area.
Nice post