I guess it depends on how deep you want to get into researching a coin, OP. There is a variety of the 2000 Sacajawea dollars that bring a premium. The tail feathers have accented feathers compared to the normal coin. However, I would say the chances of finding one in an original "mint rapped" roll is slim. The original sources of these coins is well documented (a special Cheerios promotion and as payment to one of the designers). As a whole roll, it may be worth upto ~+$15 (on a good day to the right buyer).