I saw Alexis interviewed in NYC last week by Jason Calacanis for This Week in Startups. He was asked the same question there and he went more in-depth in that interview about the opportunity cost of not-selling. Any startup with growth can go downhill for a variety of factors -- they were young and offered a life-changing amount of money. Due to a number of things going on in his life, as he said is explained in the book, it made sense to sell.
