Bill Gates approached a customer and said, "Excuse me. If I made a version of Windows which only crashed once a year, would you buy it?" The customer's eyes glistened: "Oh, would I!"
Bill Gates then asked, "And if I made a version of Windows which crashed every five minutes?" The customer glared at him, and said, "And what kind of customer do you think I am?"
Bill Gates winked, and said, "We've already established that. We're just haggling over the frequency."
[Note - modern retelling of an old joke - ed.]