For one, you're not supplying the dollar...so it's $5 pure proffit ;P
Besides, the amount was irrellevent. The point of it is to see what we can get people to eat.
I find it funny how people will handle money all day (like we do at work) and eat, touch their face, etc and are not concerned with anything that transfered of their hands.
Oh, and we do this a lot at work. So far to date....
I ate a whole maple bar donut in one bite for $5
I failed to eat a whole case of handisnack puddings (20 cups in all) in a 15min period
Another guy failed to eat a cup of raw coffee grounds (btw, the face he made was classic)