A man goes into a pet shop, wanting to buy a bird. He sees a beautiful bird, the loveliest he's ever seen, and asks how much it is. The shop owner replies 'that bird is $1000'. 'What?!?' cries the man, '$1000 for a bird? What does it do?’ 'Well, I'm glad you asked.' says the shop owner, 'you see, that bird can sing every female role in the ring cycle from memory.' The man thinks, ok but I can't afford the bird. He sees a shorter, but still beautiful, bird and asks how much that one is. 'That bird is $2000' replies the shop owner, and the man asks what this bird can do. 'Well, he can play any Paganini concerto you request on the violin from memory' the man thinks wow, but I really can't afford that bird. He then sees an ancient, hunched, half-dead, ugly, bald bird croaking in the corner of the cage, and, thinking that this bird couldn't cost very much, enquires. 'Oh, that bird is $20000' he is told by the owner. Flabbergasted, the man asks what this bird does. 'Oh, we haven't found out yet' the owner replies, 'but the other two call him 'Maestro"