I was looking at the apple refurb store and found a 2013 13in rMBP with 4GB ram and 128GB SDD for only $879. I am concerned with the ram, but not so much the hard drive as I can use cloud storage(my school uses google drive for everything). I really would like this laptop to easily last 2-3year but am not expecting more because of the lower ram. Would this be considered a good value?