Black Friday and Beyond: Walmart vs. Amazon in Holiday Shopping Battle

Black Friday is less than 48-hours away, and this year more than ever, American consumers have changed their shopping habits.

Many are spending less time standing in line, and more time buying online. E-commerce has grown 21 percent in the past year, compared to just a 5 percent increase in traditional sales. And when it comes to holiday shopping, it's price that matters most. Just ask two of the nation's leading retailers.