BENTONVILLE, Ark. -- Dennis Pflueger and his wife won a rent-free year in a nice new house in an expensive subdivision not far from the headquarters of Wal-Mart Stores Inc. As part of the prize, they then have the option to buy the four-bedroom home for $452,000.

Mr. Pflueger, a telephone-cable installer who describes himself as an "old redneck," is in the middle of his free year. But the Pfluegers are a bit lonely. Just one other family lives in any of the 28 new or unfinished houses on Foxboro Court. Up the street, a sign...