I have checked the box that says I would like to pay $25 for the meal plan. I am reasonably certain I did this last time, too, but somehow my name didn't end up on the list of people who were buying the meal plan.
It wasn't a big deal; the staff took my word that I paid at the door, and I got fed. However, I wanted to make you guys aware of this in case there's some kind of system glitch that's keeping you from getting an accurate head count.