The book had some interesting tidbits I wasn't aware of, such as where the term sabremetrics came from ("The name derives from SABR, the acronym of the Society for American Baseball Research") and the origin story for Rotisserie Baseball ("1980 a group of friends, led by Sports Illustrated writer Dan Okrent, met at La Rotisserie Française, a restaurant in Manhattan, and created what became known, to the confusion of a nation, as Rotisserie Baseball"). It also had some great quotes on the mindset of Billy Beane ("He'd flirted with the idea of firing all the scouts and just drafting the kids straight from Paul's laptop") and the team he managed ("The Oakland A's are baseball's answer to the Island of Misfit Toys").
The book probably could have been a bit shorter -- I could have done with a bit less on Beane's backstory as a failed player and a lot less of Chad Bradford's life story -- but overall Moneyball was a great read that should be mandatory for any serious baseball fan.