Money doesn't really make us very happy. Not only do we want what we don't have, we really don't know what we want, and we think the things that we want will make us happy, which they tend not to do. That's the conclusion of an ever-gushing hydrant of research from academics, psychologists, economists and social scientists from places like the University of Pennsylvania, the University of Illinois, the University of Southern California, Princeton University, Carnegie Mellon and the University of Virginia. To researchers, the pursuit of happiness--the decision to buy a Jeep Cherokee over a Chevy station wagon, a...