Everyone makes money guaranteed on every box that they buy. I would suggest buying as much 2003 product as possible as people will pay in excess of $10 for even the simplest of base cards. And the best part about 2003 product is that Blowout practically gives them away. They only charge you to ship them to your house. You will be rolling in the dough by the end of the month.
Hope that helps you on your way to becoming a millionaire.