I'm sure it's by no means a record - my current best was a $10 .org domain picked up in a drop that I sold for $ 950 - and on the day of the sale I picked up the .net of the same name for another $ 10 in another drop.
But, I actually bought this one because I liked the name and had no idea of the traffic it was getting - it's actually paid for itself in about 9 days of being listed on Sedo.
The search term 'Diet' is well suited to the domain name, but it wouldn't surprise me if the click rate of 13.5% could be improved to generate even more income, I just wish that my other 200 domains did this well !
I wish domaindruid every success with this domain.
WOW! i knew that was a good deal, bought for 19.99, up on his site for 99.00, sold for 750, insane!
I missed that name by minutes,,,heh, the story of my life,,jhahaha
congrats, and best of luck to you both,,