Hi, I have a MacBook Pro 15" Late 2012 (Without Retina Display), i7 2,6 Ghz, 750 GB HDD. I bought this in July 2012 for 16500 NOK (approx 2840$) But, tomorrow there is a great deal from a local Apple dealer in my city. MacBook Pro 15" Retina i7 2,6GHz, 512 SSD for 14000 NOK (approx 2400$, 860$ off). I always wanted a Retina screen! Should I sell my old Mac and buy this Retina version? Please help me!!