Walmart's impact

Last time we asked you about Toys 'R' Us, but now Walmart is going after the used games market. Walmart's obviously a much bigger deal. What impact will this have?

Walmart is not a big threat, since its customer base doesn't regularly trade in games.  There is very little overlap between Walmart customers and GameStop customers.  Should Walmart convince middle-aged housewives to trade in their games, I suppose they can build a business.