Why must we buy? Black Friday's powerful pull - Article Photos 4/6

Karen Jefferson, left, chats with Michelle Phan as they wait outside a Best Buy store in Raleigh, N.C., on Thursday, Nov. 22, 2012. The two had been camped out since Wednesday evening, missing Thanksgiving dinners with family in hopes of getting great deals on flat-screen televisions. (AP Photo/Allen Breed)