You cant count the cost of labor. You are not trying to retail and this is done to both save money and give you some enjoyment. If you were not reloading, you would probably be spending money on entertainment. I suppose that if you want to add the cost of labor, then off set it by how much you would spend doing something else ie: Having some drinks with the boys, visiting your local gentlemens' club, going to a concert. You get the idea.
No such thing as a stupid question. What is stupid is not asking it.