New 2015 rMBP 13" 8/128 base for $1,199 with edu discount. 2014 rMBP 13" 8/256 for $1,150. Seems to me like larger SSD is better than the small bump in speed. Battery life seems similar. This is for a student starting college in the fall, with no serious processor intensive work anticipated, but I'd like her to have the retina screen. Am I wrong not buying a new Pro ? Thanks for any advice.