Bingo. OBP was the focus of the book because of the particular subject matter it was written about. I think people always get that screwed up about Moneyball; it was not so much a book about baseball as it was about maximizing the profits of a business that does not have much resources at its disposal. The Athletics are a franchise that did not have a whole lot of money to spend on draftees and free agents. They had to find ways to acquire players who would not cost very much, but would also be productive. Thus, the use of sabremetrics and OBP came into play. Oakland felt it was a terrific way to evaluate the potential production of the guys they drafted. At the time, OBP was undervalued. Guys who could draw walks were not receiving nearly as much attention as toolsy potential guys in the draft and free agency. A number of teams focused on other statistics (BA, for example) that drove a player's value up despite him not really being that productive. Tony Womack is a good example of that kind of player. Decent average...but in the grand scheme of things, he doesn't get on base a whole lot. So, the Athletics exploited that deficiency in the market to the best of their abilities while they could. OBP was the main way of doing it for hitters, but there were other ways they went about it. However, whenever a flaw in the market is exposed, other teams proceed to take advantage of it. This instance is a good example, as teams like the Red Sox, Blue Jays, Dodgers (under Depo), and a few others caught on. Thus, the Athletics had to readjust the way they drafted and sought out players. Their most recent draft saw them take six high school pitchers in the first seven rounds, which was a huge no-no in Moneyball. The appeal of Beane is his ability to use a limited budget in order to assemble a competitive team year in and year out. Beane took over in 1998. The team has had a winning record in each year from 1999-2005, a period of six years. In that time, they have won the division three times, made the wild card once, and had two seasons where the A's won 100+ games. Other teams have successfully used other models of drafting and approaching free agency despite budget limitations (Twins). There is plenty to be said for having excellent coaching in the minors and developing players effectively. The Cubs have not shown that yet, but other teams can do it pretty well. While OBP is not the be-all, end-all of offensive metrics, it is a very good way of evaluating how good a position player is at not making an out, which is critical in baseball. It could get replaced in a few years by something else. But for now, it's one of the best metrics we have available to us.