How Costco Became the Anti-Wal-Mart - New York Times

Very upbeat article about Costco. Its shopper demographics and store sales compared to Sam's Club are astounding.

"Costco was founded with a single store in Seattle in 1983; it now has 457 stores, mostly in the United States, but also in Canada, Britain, South Korea, Taiwan and Japan. Wal-Mart, by contrast, had 642 Sam's Clubs in the United States and abroad as of Jan. 31.Costco's profit rose 22 percent last year, to $882 million, on sales of $47.1 billion. In the United States, its stores average $121 million in sales annually, far more than the $70 million for Sam's Clubs. And the average household income of Costco customers is $74,000 - with 31 percent earning over $100,000."