Upscale Wal-Mart

Wal-Mart if often thought of as the place where the less financially fortunate shop. Which is also sort of ironic, because this is the same group which is losing its jobs due to importing cheaper goods from China. We all need cheap stuff though, let us be honest.
There's nothing surprising about Wal-Mart trying to attract customers in a different tax bracket there are a business after all. I wonder what's next though... Small Wal-Mart boutiques? Personal shoppers? Valet parking? All sarcasm aside, I wonder that if they can successfully attract higher income customers, will it effect the prices.