First off, let me say what great replies these are!
Dancing Angel - Congratulations! and how inspirational you are!
WLS is definately a tool - there are different options to choose from (and I highly reccommend review ALL of them if you are serious about considering it). Each has different challenges and they each work a little differently - some more so than others.
One VERY important thing to remember, is that because it IS a tool - it is NOT a silver bullet. It will NOT do it all for you (though some will say the DS is pretty close to the silver bullet - it also can be a more serious surgery). The thing that gets me most of all is when people say it's the 'easy way out'. That's about as silly as saying that choosing a steak knife to cut a steak over a plastic knife is the 'easy way out'. LOL - well one will get you there more efficiently, but no one would say it's the 'easy way out' - it's just a more efficient way to obtain the same goal.
I think WLS increases the odds of success - long term. It's not a guarantee - but it will HELP you if you have been struggling and can't seem to get the weight off and keep it off. It is by no means a perfect solution - just an alternative to traditional diet and exercise. Actually - it's not REALLY an alternative, it's an ADDITIVE - you still will need to watch your food intake and exercise. Whether you are watching your sugar intake for dumping, being careful about the textures of the food you eat so it won't get stuck in the stoma or band, or traditionally dieting - there are always going to be changes in your dietary habits for success.
WLS takes a little bit of our own weaknesses and difficulties out of the mix. Dumping deters sugar intake, PBin'g deters over eating, (not sure if it's called dumping in the DS when eating fatty foods - but they have a reaction with that too) It's all relative. That's why you need to research.
Is it worth it?

I think so. Most people will be Incredibly loyal to their choice of WLS - which tends to be related to their success

the more successful they are with the surgery, the more loyal and devoted to their choice. That's why I won't really tout or bash any single one. I think the one that works for 'you' is unique and not necessarily the choice of another.
Just remember it IS a surgery, and each choice has it's own risks. Choose carefully and read up - if you decide to go that route. Either way - good luck in your journey!!
Tina