Assume there is a machine capable of being plugged directly into your brain. This machine can simulate for you the most happy life possible. All the luxuries life can offer experienced exactly the same as if you were actually there.
Do you plug into the machine? I know I would.
Edit: Oh, and you can never unplug. Assume you are a brain floating in a tank, also assume that you'll live for as long as your brain can provide you happiness.