Yeah, it's nice, but it's also a total non sequitur. At the beginning of the piece he says his first book was a success and he wrote the follow-ups trying to recapture the good feelings -- apparently without success. Books take a lot of effort and may not make you any significant money. So I guess the real moral of his story is that -- if you're like him -- you shouldn't bother writing books if you're already in a good relationship.