I love those BIN market places offered by some registrars. It's great to wake up to a finalised sale with instant transfer that happened whilst I was asleep. I'm still not getting enough of them, so my first reaction was that I'd undersold it. However a mark up of over 1,000% is something that is beyond the dreams of most retailers. I don't know who bought it, and I didn't have any negotiations - all I know is that the money is going into my account. What a great system.