I already have a desktop PC, which I upgrade regularly for gaming. So basically my question is whether there is any reason to go for the 15 inch rather the 13 when I am not looking for desktop replacement? I know the question sounds lame, but it is my first Mac, and actually first laptop. I need it for work and for entertainment when I travel. I do not plan on playing games on it and my work does not need more than much power, but I do not mind getting more than I need. I am getting a great deal on all standard models, so the price is not a factor here, hence my question. If it were, I would get the 13 inch. But in this care, what would you do?