2012 Topps Opening day baseball

Yet another Opening Day pack from 'The Dollar Store'. I'm not 100% sure how this works. How does The Dollar Store actually get hold of packs? According to the person who purchased the packs they were in a large bin near the front of the store. Does Topps dump the packs? Or is it a third  party? Such as: returns from other stores, packs that failed to sell?
Opening day, Panini Triple Play are common, but there are the odd Upper Deck...

The Pack:
7 cards per pack

#19 Mat Latos Reds
#45 Mark Melancon Red Sox
#62 Ervin Santana Angels
#88 John Axford Brewers
#128 Lance Berkman Cardinals
#201 Jose Reyes Marlins
#SC-3 Dan Uggla Braves

Finally!