Traditional publishing is still undergoing a sea change, a departure from many of the old models. It is a painful, wrenching///exciting, amazing new phase for storytellers and story sellers. The big-6 publishers are downsizing staff and have been for years. They are looking for new ways to be efficient and still create and sell great books. They are experimenting with incredible multimedia projects, and are sizing up the oncoming waves of reading devices and other story-vehicles. They still support great print books while releasing great ebooks. People who work at publishing houses are generally smart, dedicated to their work, and love a good story. They are also innovators who know how to adapt or morph.
*(and as of 4 28, 2012....one click brings up about 49,200.000)*
*(and as of June 5, 2013 it's 174,000,000)*
Indie and self/publishers do not offer that kind of service. It is almost certain that no craft/art/market specialists will be reading your work with that kind of careful, invested attention. It will get published anyway.