Because the economic recovery we’ve all been told is happening never really arrived, dollar stores across the United States are doing big business these days. Because of that, there’s a huge takeover battle going on between the nation’s three largest dollar store retailers. Apparently, there’s billions to be made, one dollar at a time. Family Dollar Stores (FDS) originally rebuffed an unsolicited $9.1 billion offer from its larger competitor, Dollar General Corp. (DGC), citing anti-trust risks. Ironically, it already had a deal to sell to Dollar Tree Inc. (DTI) for $8.5 billion. DGC is now taking hostile action in its…