I think a post in this thread is very correct. Many of us who are very obese, have stretched stomachs. This makes it almost impossible to feel full, without consuming a lot of stuff. Either we are always hungry, denying ourselves food, or we overeat and our diet fails.
When I was banded, and woke up, after being placed in my room I tried to drink just 3 sips of bottled Water. I felt as if I was more stuffed than after any holiday dinner of my life. The feeling of fullness lasted for quite some time, and I realized my large stomach, stretched for whatever reason would have prevented me from losing significant amounts of weight.
I'm still starting, having just been banded, but I do not have the appetite prior to the banding. It is much easier to feel full. This makes it much easier to eat less and feel good about it.
My fear was of having a small stomach, and being hungry, essentially having a void that could not be filled. So far with the band, it has become a very easy to fill void.
I wish there was a measurement of stomach to body weight and potential to weight loss to help people realize if they can loose weight. I think if they had more science down, and could demonstrate the advantage of banding or other weight loss surgery, more people would consider it.
Whatever you decide, ultimately, it is your life, and your life experience. God bless you and good luck making your decision.