Wal*Mart isn't cheaper though. I look through the ads in the Sunday paper and on an item that everyone else has for example at $11.99, Wal*Mart has for $11.88. So I save 11 cents if I go to the store where they only have two cashiers and refuse to open another checkout even though 30 people with one or two full carts each are waiting in line, or I go to a real store and check out instantly.
Plus 90% of Wal*Marts stock is Chinese plastic copies of the real thing. I'm sure they would sell 'Bod Lite' (Not actually a real beer but looks and tastes like one) if they could get a supplier to give it them for 20 cents less than Bud Lite.
They are shameless, I have even stopped going in there to check the ammo prices.