Did you see the picture of the burger in the article? All this guy has to do is declare that remaining prepaid burgers are non-transferable upon death, and he'll only ever have to make a few hundred per buyer.
Actually the burger in the picture is healthier than you'd think. It's very good quality beef. I have a balanced diet and exercise lots. I also subscribe to the 'fat is not the enemy' school of thought. Maybe I'll take some before and after photos to prove it!