The only thing in the world that can build a store the size of a pro football stadium in the middle of a cow pasture and make a profit. The construction of a Wal-Mart usually generates it's own ecosystem, complete with hotels, a Krispy Kreme doughnut shop, a new Chevy dealership, a Cracker Barrell, a SAM's CLUB, and a gas station. Some parking lots of new Wal-Marts may require a ski lift or tram ride to make it to the front door.
In the year 2034, world domination will be fought over by Wal-Mart, McDonald's, Microsoft, and Exxon Mobil. People will be torn over who to allign themselves with, Always low prices, bland food with "Mc" slapped on the front of McEverything on the McMenu, The latest $300 operating system you swear is the same as the last one, or $18/gallon gas to fill your new Bradley Fighting Veichle (the next Hummer)