I call it the lazy way out. You'd save yourself the time of going through an operation and the complications that might appear due to it by paying someone to point a gun at your head every time you pick up another bite of food that's past your set caloric intake for the day.
Basically, they are operations that shrink your stomach so that you'll get bloated from consuming less food than normal. Apparently it helps people with "Conditions" lose weight because "diets don't work" for them.
The hilarity of it all is that people lose weight from the surgery because they're eating less calories. Geez! Couldn't they just eaten less calories before and without the surgery? But apparently "dieting doesn't work" and "conditions" complicate things while cutting out your stomach or sealing it fixes these "conditions".
I am completely against insurance covering these sort of operations. Send them home with a food scale, MyFitnessPal downloaded on their phone, and a gym membership. Much cheaper than tens of thousands of dollars for an operation.