Hi guys, I am really confused between the two specifications! 15" 2.4 i7, 8gb ram, 256 ssd (early 2013) for $ 1800 or 13" 2.6 i5, 16gb ram, 256 ssd (haswell) for $ 1770 Now I consider myself a power user, and this mac(my first) will be my main machine. I want this to last for at least 4-5 years. My only reason for considering a 15" previous model is that I am getting a quad core. New 15" are 200$ extra and i am on a limited budget! Also, I am planning to use my macbook at scaled resolutions! So which of the following according to you all is a better deal?