hey doc, feel free to post anything you have to say here on the forum. I hope your stopping short of "PM me for more" because thats against forum policy.
OK, here I go again opening myself up to all kinds of negative feedback and ridicule...
I have been on other threads in this forum where I promote very low calorie dieting (VLCD) and most everyone (mostly moderators) want to string me up! But, by supporting gastric bypass or any of the other invasive procedures you are talking about the same thing!!! The surgery only does forcefully what you could do by choice!
I say an 800-1000 calorie diet, for a short time, if you are otherwise healthy, is a great way to lose weight. If you have the surgery done you will be doing the same thing (i.e. eating very few calories - not even that many at the beginning)!!!