I was just reading this interesting article about how an airline in Somoa is going to start charging people by weight. "Samoa Air, a small island-hopping operation within the U.S. territory of American Samoa, will calculate ticket prices based on a person's body weight. Passengers can expect to pay between 93 cents and $1.06 per kilogram (2.2 pounds), depending the length of the flight...Samoa Air claims it's the fairest pay model, and says that in some cases their tickets will cost less than conventionally priced airfare. But will it really? ....Will this pay model be catching on in the rest of the U.S. anytime soon? Samoa Air seems to think so, calling it “the concept of the future.” rest of article 
Hmmmm, your thoughts?