Risk vs. Risk: Obesity, Gastric Bypass and Other Methods

Doctors are debating different methods for fighting obesity, many far more imaginative than the "stomach stapling" surgery that has been around a while - giving us good information about its risks. In Australia, they just put a rubber band around the offending organ. More physicians are considering just cutting away part of the stomach. Big parts, little parts, etc. And there's the best one of all - a balloon sent down through the mouth that gets inflated so that you feel full all day. The cost and risk of these procedures is not insignificant - but how do they weigh against the cost of obesity?