Hey all! I'm considering upgrading my early 2011 13" MBP with a 256GB SSD and 8GB RAM for $160 total. Figure it would give me another year or two. But then I see the 2014 13" rMBP on Apple Refurbs for $970 and I'm tempted to pull the trigger. Besides the screen, is it really worth it? And what could I get for my 2011 as-is? Thanks!