Wystang, is there something of particular value to the 2003 bills you snagged?
I obviously have no idea what you paid for your bills but believe that it might take a little longer than 10 years to get an appreciable increase for the money you may have spent. The rarity of bills is just like with coins. If you get the right ones, they are worth a lot. My wife went to the Denver Mint a few years back and bought several sheets (1's through 20's) of uncut bills. These were sheets of 16. They didn't cost her much more than the actual worth of the bill. I wouldn't expect them to appreciate significantly in value for many years. It is more of a novelty for us. I would think it is good advice that anyone who might be interested in collecting these to first find out if there is a specific bill that was made in significantly less quantity than others of the same year. Otherwise you can order these directly from the U.S. Treasury at face value any time The leather books might make nice covers but the fact that they are a privately held marketing company doesn't add any to the intrinsic value of the collection.