Oh hon, don't you worry about what those people say. You know why you chose the lap band and to be brutally honest it really isn't any of their business what type of choices you make in your life. The lap band is effective in weight loss, that is proven. Yes, it is a tool and you have to "work" your band, but in reality that is what you end up having to do with the RNY. Sure, they lose weight really fast and dramatically, but a lot of them gain their weight back at the same frightening pace. Have you seen Carnie Wilson lately? My suggestion to you is to ignore them and to remain confident that you made the best choice for you possible. If it were me and someone said something like that to me, I would tell them that it is none of their business and that you did not ask or want any of their biased opinions. You just keep doing what you doing, lose the weight, safely and in the end it won't matter anyway.
Good luck in your weight loss! I have faith that we can do it; I studied both RNY and Lapband for a long time prior to having my surgery and I can say I am 100% comfortable with my choice and no one would be able to tell me otherwise.