You Browse the store, looking for a souvenir to take home with you after your stay at the zoo. You come across a necklace that has a lions claw attached to it. The store keeper walks up to you "That is a very rare item, it sure is pricey but its the only one we have and I've never seen anything like it before." You smile "Well, it sure is neat..... how much is it"? The keeper looks at you "We are asking $300 for the necklace, its pricey I know, but its one of a kind." You look at the necklace a bit more and decide to just buy it. You have some extra money and you don't know if you will ever run across anything like it again.