One of the unwritten rules when visiting Venice is that if you drink coffee, and order coffee in the busy tourist areas is you will (probably) get ripped off. Well, you will pay a lot for the coffee compared to other places in Venice.
Though if you are in Venice as a tourist there is something I guess about sitting at a table in the bustle of Piazza San Marco drinking a coffee.
Personally I wasn’t too fussed about that when I was in Venice for the day. What I wanted was a coffee. Having just walked around Campo San Barnaba looking at the Chiesa di San Barnaba where they filmed Indiana Jones and the Last Crusade, I wanted a coffee.
Close by and near Campo Santa Margherita was a small cafe, Panini e Vini da Babbo. I ordered an espresso which was €2.50.
This was an excellent coffee and just what I needed. What was interesting was when I went back later that day I was only charged €1.50 for the same espresso.