the U.S one dollar coin will be phased out. a long time ago the U.S. tries to phase out the one dollar paper bills by making one dollar coins, i think you know the coins, the ones with susan b anthony on them. we it was a watse of money cuz stupid ppl thought they would be worth something and started to save them! idiots!
now the new coins have i beleive john adams and there is no date of minting on the new coins. to prevent the hopeful collecting bastards from keeping these one, the government only releases coins into the market by trading them to banks from deterierated paper bills. the difference now is that the last time, the banks purchased these coins they paid for them with any paper bill, the new ones can only be traded with one dollar bills that would normally be sent to be burned and the government seized all paper one dollar production.
the benefits of coinage:
the use of coin money of larger value than a dollar is to reduce inflation and the cost to replace damaged paper money. since the U.S. dollar is worthless to the world economy atm, it would actualy cost more money to make paper dollars and distribute them than the dollar is actually worth!!!
NOTE: for those of you would may not understand and still have an IC mentality, just think of it as your bureaucracy being enormously larger than your net income!! 
I dont smoke cigarettes because i like them. I smoke because it hides the smell of marijuana thats seeping into the hallway atm.