Hi guys I am using the 2012 macbook retina 15" base model with 16 gb ram as mostly a windows machine. I saw that the new retina has the iris pro graphics card without the nvidia graphics card. As you know, the bootcamp drivers don't let me use the integrated graphics, so the new macbook retina would actually increase my battery life significantly. So my question is, where is the best place I can either sell my macbook or trade my macbook for the new one. How much do you think I can get for my macbook? It is in 'like new' condition. Thanks for your help!