I just bought both a 13" rMBP and a 13" MacBook Air to test them out and see which one I like more to keep and I'll return the other one. I noticed that on the rMBP, the FaceTime camera seems to lag a bit compared to the MBA and the color seems a bit worse, too. Is the lag normal on the rMBP? If it is, could future software updates fix this issue or is it a hardware limitation? My job requires me to use video conference everyday for at least half an hour, so the camera is actually a big factor which machine I end up keeping. Thanks! Really appreciate your help!