A man is staying at a Vegas hotel and goes to play golf on their
course. Before he starts, he buys 3 golf balls for $5. He has a very
pleasant round.
The next day he decides to play a different course and goes to the one
across the street. He also requests 3 golf balls and finds out that
the price is $25! He protests, "Where I played yesterday, they were
on the $5." The pro shop attendant explains, "Well, over there they
get you by the room."