Hello, I am thinking of buy a macbook. I have seen some articles about the new macbook. It seems that there is no big difference between the new one and the old one except the graphic card. I am not a 3D game player. I just use the notebook to surf the internet and write some codes. So I don't know if I should buy the new one since there is not big difference between the new one and the old one for me? Do you guys have some suggestions for me? Thanks!