Hi everyone! I have owned my Black MacBook listed in my signature for almost a year now, and so far I have liked the machine very much. It is a great school laptop, and I would say it is arguably better than most of todays laptops as well. I through in 4GB of RAM, and that has been the only upgrade made to this machine besides re-appling all the thermal paste on the heat sinks. However I have lately noticed the screen showing backlighting inverter issues, and I get a flicker every now and then. I would like to offload this machine in the near future, and I don't know what I would chose as my main portable after I sell it. Here are some of my options: 1. MacBook Pro Non-Retina Mid-2012, new from Apple. 2. MacBook Air Early-2014 13", new from Apple 3. MacBook Unibody 2010 4. MacBook Pro Late-2008 15" Please comment on what you think I should buy for my next Mac! Thanks!