And no one is selling more copies than Batman, but eventually just being Batman isn't going to be enough. At $4 an issue Batman is going to price himself out of the market pretty quick. You know Kid Rock has released 4 albums since the iTunes store debuted and only one of those made platinum because he thought $10 an album wasn't enough.
My LCS treats comics like a secondary product, their money is made off of Strategic Card Games, Clix, and selling energy drinks to the leagues that play there. Budget, OnCue, and Borders went under, Barnes and Nobel is scrambling and Hastings is changing their market strategy to closer match Best Buy. It isn't DC or WB's problem to worry about LCS's. The only way that Disney and TimeWarner can loose readers is by being undercut on the market.