I have had a passport for many years and it has come in handy on a couple of occasions. Two occurred most recently: First incident I was going thru airport security at RIC and my driver's license is a fairly beat up and scarred, hard to read clearly. The security agent asked for an alternate ID, passport was the best choice and no questions asked. Second was just yesterday, I managed to get out of the house without my wallet (wife was driving) rode my bike to the local medical clinic, needed picture ID...fortunately passport was in my briefcase at my wife's shop, so ID was only 6 blocks away instead of 25 miles
Aaron