Actually I'm not. And you still haven't provided any data to the contrary that their "PC's" are losing ground to competition....
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Well, I think we can all agree that the 13" Retina MBP's were priced incorrectly. I see the price adjustments less about losing momentum, and more about pricing inline with the rest of their products. By the time you added the 256GB SSD to the 13" Retina MBP, you were basically at the 15".