I remember digital cameras being called "frivolous", one time.
Another camera that's fun is the Holga 120. It can be bought with either a glass or a plastic lens, along with a flash model, and a flash model which has various coloured filters over the flash unit. It's also completely plastic, so dig out the masking tape if you don't want light leaks.
Its only drawback is that it takes 120 roll film, which generally needs to be processed at home... most of these 1-hour supasnaps places won't know what roll film is, let alone process it.
The bonus of the Holga is that it's not run by an extortion racket, unlike lomo.