So here is my current situation. I bought a MacBook air for my wife in 2014 for her school. She has since started a new job after graduating and got a new lenovo (Which is very nice) for work. She gave me the MacBook and I use that for school sometimes. I also built a gaming PC which I do most of my schoolwork on. My goal is to transition all my schoolwork to the MacBook and use the MacBook for school, work, and do some writing/minor video editing with. My question is should I keep the MacBook air I have (13 inch, i5 1.6ghz, 128gb SSD) or sell it and get a MacBook pro 2012 15" i7 and drop in an SSD and 16 gb of RAM. I'm not really wanting to buy new. What would you do?