Theft and Vandalism. Many school officials want to keep the decisions on what they sell students under local control. And during warmer weather demand for chilled drinks peaks. Should the fresh food run out then there is still frozen items to sell. Besides beverages, some school districts offer vending with snacks such as chips and ice cream. According to the Scripps Howard Foundation Wire, the money that the school collects from students entering money into the vending machines is invested in school field trips, school supplies and electronics that are essential for the school to have.