It's on my birthday too!
I am considering going especially since my SWMBO opened up that idea to go for my birthday. But I'm worried at how the beer is only distributed in those small 2oz. cups. I just went to the Austin Brew Festival this past weekend. They had those 2 oz. cups too, but at least you were able to purchase a full 12oz if you wanted to. I haven't read yet where they were going to allow you to purchase the full 12oz bottle. I know that you can get another sheet of 2 oz samples (12 count) for $2, which is nice, but I spent sooooo much time standing in line just to get a shot of beer.
I love beer fests and I've gone to a several back in Florida where I'm from, and they didn't pour a whole glass, but they didn't give you a shot-sized pour either!