A tourist walks into a pet shop in Silicon Valley, and is browsing
around the cages on display.  While he's there, another customer walks in
and says to the shopkeeper, "I'll have a C monkey, please". The shopkeeper nods 
goes over to a cage at the side of the shop and takes out a monkey. He fits a collar
and leash and hands it to the customer, saying "That'll be $5,000".
The customer pays and walks out with his monkey.

Startled, the tourist goes over to the shopkeeper and says,
"That was a very expensive monkey-most of them are only a few hundred
dollars. Why did it cost so much? "Oh", says the shopkeeper, "that monkey
can program in C with very fast, tight code, no bugs, well worth the money."

The tourist starts to look at the monkeys in the cage. He says
to the shopkeeper, "That one's even more expensive, $10,000! What does it
do?"

"Oh", says the shopkeeper, "that one's a C++ monkey; it can manage
object-oriented programming, Visual C++, even some Java, all the
really useful stuff."

The tourist looks around for a little longer and sees a third
monkey in a cage of its own. The price tag around its neck says $50,000.
He gasps to the shopkeeper, "That one costs more than all the others put
together!  What on earth does it do?"  "Well," says the shopkeeper, "I don't
know if it does anything, but he says he's a Consultant."