Go to Giant Eagle, Shop 'N Save, Foodland, or any other super market and look at the price of food. Now go to Wal-Mart and look at their prices. Where would you rather buy your food?
In a Wiki about the history of Wal-Mart it read "As a typical businessman, Walton was always looking for better deals from his suppliers, and he realized that he could obtain higher sales volume by passing on the savings to his customers, instead of pocketing them."
(Source
http://en.wikipedia.org/wiki/History_of_Wal-Mart)
The one thing I won't buy at Wal-Mart are clothes and that's because I'm not fond of the styles there. I prefer Pacsun.