Is this a cafe, charity or cult?

Because someone is good at selling franchises.

Yey! Another multilevel marketing scheme disguised as a nutritional shake shop. I'm sure their vitamins, herbs and minerals are good for you ... but at the cost of blood. Pass. It's not a franchised business; fusion shops are simply a storefront for the pyramid to convince you to sign up to become a distributor of Herbalife. No offense.

Fruits and veggies easy and cheap?

For the sake of argument: 

New York Times: A High Price for Healthy Food

I think the Fusion franchise is successful because it offers nutrition and convenience.  It's a fast-food option without the Big Mac guilt.  But yeah, it's also pretty cult-like.  Fad diets are the ultimate get-rich-quick biz.

That is an interesting stat, but what I think it tells us about is not the real cost of healthy food rather than junk food -- instead it tells us about the way our industrial food system has subsidized (through our tax monies), the system of food that favors high calorie, low nutrition "edible food-like substances" (Michael Pollan, In Defense of Food: An Eater's Manifesto).

And I know, when you're on a tight budget that difference really doesn't matter 'cause you gotta eat enough of something on 3 bucks a day to keep you from feeling like you're starving.

Cold Fusion is Herbalife whose founder just happened to be a pill popping alcoholic who overdosed. If you have no morals and/or self worth go for it!