there have to be cheap catering (buffet/always available) options to offset your choice of cuisine.

pizza bagels? pigs on a blanket? pizza rolls? wings? whatever the cultural equivalent is, please please find something for your guests so that they don't starve.

an open bar is only good as far as their stomachs are full. you do not want the drama from 2 pieces of ravioli on lettuce + 5 shots.