Hey everyone, As I am going to college next year I need an upgrade from my 2010 macbook pro 13 inch 2.66 ghz 8gb ram 500 hd laptop. I want to get the 15 inch Retina after the next refresh this spring. I was offered $675 for my macbook (out of applecare warrantee, almost 4 years old). So I have two questions: A. Is this $675 a good deal to get rid of my macbook pro? It is in pristine condition B. Is the 15 inch retina a good laptop for college (BME, with computer science, and business) or is it overpowered for all but the most extreme use cases? I really despise working on a 13 inch screen but that may be due to the small pixel count relative to the 13 inch retina. Thank you for your help!