Valuable Sacajawea Coins?

For whatever reason we ended up with ten dollars worth of dollar coins when we went to the Capitol South metro station. We wanted to transfer the coins to a metro card but no one would do that for us. At first we thought the coins were tokens, but they were actually brass dollars. Upon closer inspection there were six random presidential coins - two Garfields, Washington, Adams, Lincoln and Andrew Johnson? And the other four were faces of Sacajawea. I didn’t think much about it at first but then decided to look and see if any of the Sacajawea coins were worth any thing more than a dollar. Apparently some of them are - including two that we had that had the date of 2000 - the year they were minted - and the letter P. The other two did not have a date, which made the investigation more interesting. Apparently the value is raised when the coins have not been circulated. And of course, all of these coins have been circulating since 2000. So rather than a value of five dollars, they are only worth their initial value. I should have known better. But for a split second I thought how lucky we could have been? What a stupid idea. The only good thing to come out of these coins was that they served as the subject matter for the 52Frames “fill the frame” photo challenge this week.