How Much Beer Is Really In That Cup? [VIDEO]

Ever been to a concert or sporting event  and debated on whether to get a large beer or just save a few bucks and stick with a small one?

I know I have. I start to quickly do the math and then realize I don't like math  and I'm here to have a Good Time! And obviously I'm getting more for the higher price right?   Well...maybe not.

Check out the video below and story from the Associated Press about how that might not be  the case at a Boise, Idaho Arena.