My dinner is a whole hog bbq buffet. The company comes in sets up buffet (everything is pre-cooked), they arrive approx. one hour before dinner begins, they do not serve anything or the head table, and then they pack up and go. Dinner is $12 per person, and gratuity is not included as it's up to our discretion. There will be 5 people there from the company.
I'm really torn on what to tip. We've been to functions where they have catered, and it's always AMAZING food, but they never really have anything to do otherwise. Set up, take down, go home.