I was messing around in my GoDaddy account and I never noticed this before - GoDaddy has a Domain Auctions service available.

You can buy or sell.

Ready to sell your domain name? Want to bid on a name that already exists? Looking for the Internet’s new auction house for the hottest domains, all backed by proven Go Daddy systems and support? Then you’ll want to be a member of The Domain Name Aftermarket!

I just know superaff.com would bring *huge* money!