Peter Molyneux doesn't want you to replay Fable 2.
The game's main story will only take you about 12 hours or so to complete, but he wants you to keep playing long after you've completed your final heroic deed, and he's perfectly willing to rely on your natural tendency toward greed and guilt to get you to do it.
"Do you care about your family? Do you care about money? Because if you're going to rush through this game, then you're not going to be getting married, you're not going to have dependents that need you to earn money for them."