When Sam Walton was still kickin', I sold them loads of Pepsi. They were smart about deal making at the store level from market to market. When Bentonville started taking graft for selling products, they lost a lot of leverage. The early Walmart model was superior to say, the Safeway or Albertson's model. Now it is identical. They are also eliminating a lot of value products in order to increase same store sales. That will bite them. They suffer from arrogance nowadays. Amazons and Aldis of this world will chip away at Walmart now from all directions. It is nature. It is gravity. Only the humble can change.