More than 10 years later, Mr. Glass' concerns appear to be born out by a New York Post article that reports Walmart is asking suppliers to come to the retailer with their lowest "opening price points" to deal with competition from the likes of Dollar General, Family Dollar, etc.
One unnamed supplier to Walmart told the Post, "It's pretty unusual to have them calling you instead of the other way around. They told us, 'The dollar chains are eating our lunch, and we're not going to let them do that anymore.'"
Another quote attributed to a supplier to Walmart claimed, "The message is, 'Anybody who can deliver opening price point [goods] for us will become a vendor -- anybody who can't, can leave.' Not since the 1990s have we seen Walmart signal this level of competition on price."