Acai only grows in the Amazon Rainforest. When Acai is picked, it is a delicate fruit that must be processed within 24 hours as it is highly perishable.
You CANNOT buy Acai as a whole fruit in North America.
http://www.live-the-organic-life.com/acai-berry.html
I enjoy the flavour of the high impact acai smoothies from booster juice but they haven't improved my life in any noticeable way, shape or form.
i did some landscaping for a lady that was a distributor for
XANGO and she gave me a few free bottles of the stuff to try. she hyped it up saying it has shrunk tumors and cured depression and has all sorts of miraculous abilities and after going through 4 bottles, the only thing i can honestly say is that it tastes good, but at $40 a bottle, I would rather have the totally unrelated
XANGO DESSERT instead.
i think avoiding or moderating bad foods alone will do a lot more for you than focusing on "superfood" intake.