T.C.
My mom and sister have a BlendTec. Doesn't it cook too? It seems like I remember that, but maybe not. I have no idea if it's necessary. It seems like a lot for a blender. But my mom/sister love theirs.
One thing to be aware of when it comes to juices or things being changed into a liquified form vs their normal form...your body digests them differently. When you chew your food, your mouth takes time per bite. Your teeth chew it up, saliva is mixed in, and that aids in your body being able to break it down properly and digest it better.
When you drink it in juice form, that saliva doesn't get mixed in there, and your body then digests the juice/smoothie more like sugar. It's going to increase your insulin level way more, and this is where the weight gain comes in.
If you want to juice or eat a smoothie, make sure to "chew" your juice/smoothie. You need to mix in your saliva to help break it down. I know this might sound crazy, but it makes sense if you think about it. A friend of mine was explaining this to me. She'd been studying something about nutrition (can't remember what...something to do with her degree) and shared this. Now I try to eat things more in their normal forms than in juice. I rarely drink juice. If I do, I do it very slowly... :-) Hope that helps!