I'm going to buy a mac..but It is difficult to decide which MacBook to purchase..Would i buy macbook pro retina or non retina?As you know, the resolution of MacBook pro with retina display is 2880x1800, but do I really need it? I usually use it for gaming (like FIFA ...diablo...)and surfing the net. I seldom (or never) edit photos and video. I will use it for 3-4 years.. Sorry for my silly English .