I have 2 different sandwich prep tables that I use. I hate listening and smelling generaters so I have an old ice chest sandwich prep table, and I have a True electric prep table. I use the True if electricity is available. The health dept here will not let you make sandwiches without a prep table. They will let you pass out sandwiches and have mustard and ketchup containers for folks to use. The food laws are state wide-- but governed, interpreted and enforced locally----so other counties are different. It does not make sense to me that the 7-11 on the corner can sell hot dogs and have condiments sitting around---but food vendors get treated differently.
A prep table is something else to haul around and load and unload---unless you must have one I would not use one.