Apple Store genius guy at Southpoint Mall says that you cannot replace the SSD in the newly-released 13" rMBP. Good old ifixit sure makes it look like you can just pop that PCIe drive out and replace it. OWC doesn't sell any for this model, but that's no surprise since the model was just released. I am aware that the RAM is soldered to the logic board but can I theoretically replace the SSD? This knowledge would change my impending purchase. Thanks!