Well now when you go to Panama, you'll have 25 cents. Their currency is pegged to the USD so you really aren't losing out too much. Also, you will probably have more buying power for that 25c down there
2008 they made a couple variants, one for breast cancer and one for a 50th anniversary of a childrens hospital. that's all I knows except the one you have I don't know the mintage for but safe to say its' more than the two circulating commems. Oh and they are the U.S. quarter planchets, struck at the RCM.