I think it is worthy it. I hesited for a long time before made the purchase - I bought Blendtec, the competitor of Vitamix, because it was on sale in Costso. (I think they are equally wonderful).
I have consumed a lot more fruit and vegitable since bought it. I often skipped breakfast in the busy morning time before. Now with the powerful Blender, within a minute, my fast breakfast is ready: a super healthy delicious glass of mixture of fruit, nuts, sometime with ginger, or milk, or even dry dates. Unlike those Juicer, it keeps the fiber in, and can heat up a little bit if you don't like too cold drink in the morning. I have not used any of the other functions yet, I believe this fast healthy breakfast only is more than enough to pay off my almost $400 investment.