I am looking to buy a mac notebook for college this year.(I'm going to be an engineering major) Unfortunately the new rMBP is not going to be released soon enough as I need a computer by the latest the middle of next month. I want to make sure this computer will last for at least 4 years of college and hopefully a little longer than that and still be very useable. I want to be sure to get good value. I have attached a picture below of the pricing breakdown and the models I am considering. Which would you recommend based on how long it would last and value? Would you recommend refurbished?(Are they of the same quality as a new one?) Also I'm leaning towards the 15" rMBP and I know I want a solid state drive probably the 256GB size would be enough but I'm questioning whether I should upgrade the RAM to 16Gb to help with future tasks. (like running Parallels or other taxing software) Finally is Applecare really worth the price; am I likely to have problems with my computer within the first 3 years?