How much is a can of Duff beer?

Duff Beer is available in Buenos Aires, Argentina at a bar in Recoleta that is very near the big movie theatre by el cementario. This is all by the intersection of Avenida Pueyrredon and Avenida Las Heras. I drank this a few months ago!

I think you can get them in a few places but I got some when I was in Austria.

At the Hotel Postwirt