"In the end, Walmart won against Kmart and today is a $231B giant but as of now, it has a smarter and more agile competitor - Amazon.com. Will Walmart survive the shift to e-commerce? Only time will tell. Agility, being customer-centric and continous refinements made Walmart a retail giant and it seems the same philosophy made Amazon the champion of E-commerce."

Walmart will likely remain competitive for the future, because e-commerce will never fully replace online shopping. Sometimes you need it right now, and sometimes you just don't want to buy it online, you need the intangibles of touching, feeling and seeing the object you wish to buy in person.