Best Buy is closing 50 stores. How does that make you feel and what does it mean for our retail economy?

When Circuit City and Borders closed, I took comfort that Barnes and Nobles and Best Buy are still around. But now this news. Is our retail economy just evolving to adapt to hopefully better path to a sustainable economic future or is this a sign of worse things to come? Also, answers not related to the economic picture are welcome as well. Thanks!