A man goes into the doctor with severe headaches and finds out that he has a terminal brain tumor. He asks the doctor if there is anything that they could do. He informs him of a radical new brain transplant procedure.
"How much will a new brain cost?" The man asks.
"Well, if you want to get the brain of a Democrat, it will cost you $100,000. But if you want the brain of a Republican, it will cost you $50,000"
"Why is the Republican brain so much less than the Democrat brain?" the ill man asked.
The doctor replied:" Well, since the Republican brain has been used, we can only sell it for half price."