Something interesting I found out today was that the Sacagawea dolalrs were first circulated by being put in Cheerio boxes (was actually on the trivia board at the coffee house I go to every morning).
http://www.dig4coins.com/news/latest...still-valuable
Interesting the mint spent $53 million on this promo to circulate the coins. If they spent that much, then they can't be too concerned if UPS charges go up due to fuel price surcharges for the direct shp program.