I've noticed that most hotels with room service now charge a delivery fee (~$3) and a service charge (~21%) in addition to sales tax and on top of exorbitant markups on the food itself.
A simple burger can run you $30 with all this nonsense and I feel like it is piling on to expect a tip too, but I don't want the hotel employee to get shorted just because the hotel is getting greedy.
My question is this: Is it customary to tip for room service in addition to the service and delivery fee? Or are these fees a form of mandatory tip? For anyone who has worked in room service, does any of the service or delivery fee go to the kitchen staff/delivery person?