So I decide to rule out the 13in pro just based on the 1280x800 display. So I am down to a loaded 11in or loaded 13in Air. I can get them for only a $47 difference between them from my work discount. $1,550 vs $1,597. My only questions are: When working on a train will I notice the extra space the 13 needs that much? How much easier/harder is it to multitask on the 13in or 11in due to the resolution difference?