A man has been in a terrible accident. He is rushed to the ER where the best surgeons are working diligently to save the man.

The head surgeon goes to speak with the family in the waiting room.
"I'm sorry, but it doesn't look good. The patient has suffered extreme head trauma and is in need of a brain replacement."
The family gasps collectively. The man's wife says, "A brain replacement?!? Is that possible?"
"I assure you that it is an effective treatment for this kind of trauma. It is an expensive procedure, but there are options."
"Options...?"
"Well, we can replace your husbands brain with a man's brain for $60,000, or we can use a woman's brain as the replacement for $30,000."
"Why on earth would a man's brain be more expensive?" asked the wife.
"Well, we have to offer a discount on women's brains... they've been used."


Bazinga.