It seems as though the founders are intent on becoming billionaires. Hard to imagine not cashing in (at 22!) for enough money to live the rest of your life and

It seems as though the founders are intent on becoming billionaires. Hard to imagine not cashing in (at 22!) for enough money to live the rest of your life and the rest of your children's lives without a financial worry in the world. I mean, what is the end-game for him here? More money?