Customer: Hi! I'm bored with myself. I'd like to buy a new brain and have an all new personality.

Shopkeeper: (In one of those evil, horror movie voices) Ahh, yes. Well, I can sell you this brain from Billy Crystal for $5000. Here. Try it. ("Unscrews" head and plops in pretend brain.) How do you feel?

Customer: (In Billy Crystal style voice) Marvelous. I ... feel ... marvelous. But I don't think it's me. Can I try another?

Shopkeeper: Okay. Let me see. (Rummages around.) Let's try this one. It's the brain from Captain Kirk. Only $5000.

Customer: (In Kirk voice) Scotty ... Can you fix those transporters? No, a bit too famous for me.

Shopkeeper: Sure. I'll go out back. (Rummages around in back of store.)

Here's one from Ronald Reagan. It only costs $5000. How do you feel?

Customer: (In Ronald Reagan style voice) Wellll ... Bonzo, stop that ... I think that this one's still a bit too famous for me.

Shopkeeper: Hmmmm. A tough customer. I'll have to go down to the basement. I'll be back. (Customer comments on the kind of brains he has gotten and what kind he'll get next.) Ahhh, here we are. The best in the house, not famous at all. I guarantee you'll love it. Only $15000. (Yes ... $15000.)

Customer: (Imitates a leader in the crowd for some notorious act, such as putting up the sign and calling out "PACK!" or admonishing the kids or doing a famous routine or the like.) Hmmm ... this is good. But I recognize it. No, wait ... it's (Insert name of person.) I love it! But tell me ... the brains of those three famous people only cost $5000 apiece. This one, however, comes from a virtually unknown, unimportant person. Why does it cost $15000?

Shopkeeper: Well, it's never been used!