Superman Cereal versus Batman Cereal

Superman versus Batman opens on the big screen in one month but the competition has already begun. In the breakfast aisle at the grocery store this week I spotted boxes of Superman Cereal and Batman Cereal duking it out next to each other!

The burning question in my mind is: exactly when did $3.99 become the standard price of a box of breakfast cereal? Pick whichever superhero you prefer but ultimately the winner will be Richie Rich!