i have recently bought a new 15inch Macbook Pro (June 2009) with the 2.53ghz processor. i will be going to college next year. i want to know if the higher end 13inch model would have been a better choice. what do you guys think? i quite like the screen real estate on my 15inch but i feel as if i should have bought the 13inch because it is the same exact power/specs but increases portability and i could have always bought an external display for watching movies or other things of that sort. i feel like i have the awkward model out of the bunch. the 15inch 2.53ghz is big but has no added power to show for it over the 13inc 2.53ghz whereas i would have been able to justify the 15inch had i bought the 2.66ghz with the better GPU. however, i have no use for such a GPU. so it makes no sense to spend another 300 bucks. (i plan on being a business major and i don't really need a powerful GPU). i don't know. what do you guys think? did i make a good decision with buying the 15inch? i mean, 2inches isn't that much difference in portability right?