Planning on going back to school to get my Masters in Business (MBA) and cannot decide on the 11 or 13 inch air. I know...sorry for another one of these threads... But I've searched and probably read every post on the topic. My heart keeps telling me 11" but my brain keeps telling me 13". Looking for advice from those in grad school and getting their MBA. Which one did you choose and why? Do you think the 11" screen make a big differenc and would be too small to work? I do have an iMac at home for more real estate, but the battery life, SD card slot and 13" screen keep telling me its probably more practical. Btw, yes, I have been to the apple store and played with both multiple times and still can't decide.