A lot of business mailings (at least that's the kind of stuff I consider "spam") get much cheaper rates than run of the mill residential letters, thanks to good

A lot of business mailings (at least that's the kind of stuff I consider "spam") get much cheaper rates than run of the mill residential letters, thanks to good ol' regulatory complexity. Ex: http://stateimpact.npr.org/new-hampshire/2011/09/27/how-junk-mail-is-helping-to-prop-up-the-postal-service/ http://stateimpact.npr.org/new-hampshire/2011/09/27/how-junk...