Profit. Reality shows exist because of profit. All it takes is a camera operator, a high dollar Sony camera, and some kind of director. Then, the producer splices the stuff together. Low cost to produce, tons of idiots willing to watch....ads sell easily if they have lots of viewers. Duck Dynasty claims to not even have scripting...they only discuss the scene and everyone does their own lines. Much cheaper than doing an episode of Green Acres and the reality show has the same zero-brain viewer requirement.