Wal-Mart = Bush. Costco = Kerry. Costco’s Winning.

Daniel Gross writing at Slate tells us —

Now we’ve also got red-state, blue-state discount retailers.

On the left: Costco Wholesale Corp. Last week, Jeffrey Brotman and James Sinegal, chairman and chief executive office of Costco, respectively, joined the list of executives who endorsed John Kerry for president. The company is based in Washington (a blue state in the past four elections, and one that Kerry leads, by a 53-45 margin according to the Aug. 2 Zogby poll), and a list of its locations bears some resemblance to the Kerry-Edwards campaign: strong on the affluent coasts and virtually nonexistent in the comparatively poor Great Plains and in the Old Confederacy….

Like today’s Democratic Party, Costco favors highly trafficked urban and edge-city locations—it has three stores in New York City. And it caters to a decidedly upscale crowd. As John Helyar reported in this excellent Fortune profile, the average salary of a Costco member is $95,333. The company’s merchandise mix reflects the fact that its customers shop at discounters by choice, not by necessity. They’re New Luxury suckers who like to save on staples, more Jean Chardonnay than Joe Six-Pack. As Helyar notes: “Costco is the U.S.’s biggest seller of fine wines ($600 million a year).”

The article continues.