I have a mid 2011 MBA 13-inch 1.7ghz intel core i5 128gb ssd. very light nicks on the edges. no scratches, dents, or damage. the rubber feet on the bottom are slight worn for normal use. Doesnt have the MBA box, but I have the Apple Refurbished Box that it came in when I purchased it. I can completely restore it to factory settings running mountain lion 10.8.4. I know its a couple years old, but still runs extremely well. I just want to upgrade to the current MBA. What do you guys or gals think I can get for this?