2lb burger was $10. eat it all in 1 hour and you get 50% off, a t-shirt, and your picture on thier wall of gluttons, err, fame.
they have a 3lb burger that if you eat it all in 90 minutes you get 50% off and the same stuff as if you eat the 2lb burger.
the 6lb burger - you get it FREE, t-shirt, wall of fame, and apparently you get in a few newspapers, as that's what happened when the 100lb girl became the first one to meet the 3 hour challenge.