Hey, if it's portable enough for you, that's fine. But honestly - the macbook is STILL more portable, regardless of how you look at it. You can't reasonably argue otherwise. I'm not being a Mac zealot - any 13" laptop is better for carrying around. I just don't see the point in a big laptop with a big desktop at home.
Plus, yours may well be fine, but usually the bigger laptops have much lower battery life. Also, the width and balance is perfect, so I can sit it on my lap, locking it in place with my knees - provided I turn the wifi and bluetooth off, as I want to have kids some day, lol.