Hello, I'm having a tough time deciding between which MacBook to buy, mainly because I don't know the differences between the two so I figured I would come here. I cant decide between the 2014 Macbook 15" base (model number MGXA2LL/A) for $1749 or the later 2013 Macbook 15 Model #ME294LL/A for $1949. The one for $1949 has a 2.3GHz processor versus 2.2GHz on 2014, 512GB SSD vs 256GB, and I believe it has the NVidia graphics card (the website doesn't say it does but when I google that model number it says it does so I'm slightly confused). Are there any major updates on the 2014 MBP that makes it significantly better than 2013? Or if I dish out $200 more will I get a significantly better machine? I plan on keeping it for around 4 years through out all of college. Thank you, I'm trying to make a decision by this Saturday.