Hey guys, getting a 13" rMBP for college from bestbuy. Gonna be using it mostly for web browsing and research papers, so nothing intensive. I'm trying to decided between the 4gb/128 and 8gb/256 versions. I can get the first for $1100 with discounts, and the second for $1300. I tend to upgrade my electronics often, so I'm thinking the cheaper first one and getting the broadwell refresh.