I'll be getting a MBA for my father soon. 13" display is non-negotiable, but I still haven't figured out the SSD, whether to shell the extra 300$ for 256GB. He'll be using it mainly for surfing, mail, photos he takes and checking PPT and occasional small videos sent by friends. Office will be installed but he writes about 20 letters per year, excel usage will be minimal. Just checking a few tables from time to time. He has an iphone5 & ipad2 with normal sized itunes libraries. No music, no videos or navigation. I'm thinking a 128GB would fit the bill and if he needs more space in time, I can get a bigger SSD from OWC. Do you think he can get by with a 128GB or should I go ahead and buy the 256? All inputs will be most appreciated.