I think this is a good antithesis to some the hype that you read about growing a big business on the "next big thing", people taking millions from venture capitalists before selling to Google and the like. Rather it focuses on doing something you love, making a small business out of it through organic growth and not seeing selling your company, community or soul.
I think this is underrated - you don't hear much about this approach which should be painfully obvious.
Reminds of this book Davidw recommend. I think it's entitled "How to grow a Business"? Again with the hustle and bustle of the Valley, people selling out here and there (mind you it's not bad but I believe it is not the optimal approach for some people) there is something to be said about growing a business the old fashion way.
I think this is underrated - you don't hear much about this approach which should be painfully obvious.