Bah, that kind of money should be spent. Would you rather he sit on it or bought stocks and T-bills? Before you say he should spend it charitably, I honestly don't think it is easy to donate tens, or hundreds, of millions of dollars in a way where you could be sure it would be put to proper use, unless, or even if, you made it your full time job.

Besides, I'm fairly sure Notch will put part of those billions towards worthy causes.