I sold my startup stake and found out that "nothing is really new anymore" couldn't be further from the truth. Not even any big amount of money. The time I gained helped me more than the money.
I moved to the frontier of technological development and intend to stay here for the foreseeable future. What I think about now is pushing technological boundaries, not fulfilling my personal monetary needs.
If you have family, going around in a converted van/bus is a very fun thing to do with endless possibilities