Despite strangely subtle mention of the fact that the CEO and author are engaged, I think it's worth noting that has a material impact on a common sense analysis. In the likely event that this start-up fizzles out, it's reassuring that your spouse has a stable corporate job. Sure, engineers are in very high demand RIGHT NOW, but in a few years the bubble could burst and your family could be in trouble. Do you really want to put all your eggs in a single, very risky basket?