The Belgian festivals I've been to have free entrance and you pay 1-1.50 euros per 15 cl pour. I figure I'd be willing to pay 20-30 euros for entrance if the samples were free. So, I go in planning to spend that amount on samples and dumping what I don't like. 20 or so tastes is plenty for me, I've learned. What I really think is fun is the look and the questions I get when I ask for a nearly full sample to be dumped. They don't get it. I get the same reaction when I ask for mustard on my crab sandwich.