So i've had my MBA for about 6 months and although i love its form and portability, its speed and battery life are leaving a sour taste in my mouth. I mainly use it for grad school/research, so the size is perfect, however, I recently started thinking that the 17" MBP could be a better option. -Pros: Great Battery life. I sit in class for 6 hours and the outlets are across the room. Great screen. Great for SPSS, excel and powerpoint.... -Cons, its size. I love how i can fit my MBA into the back laptop compartment of my backpack with ease BUT i am worried that the MBA is too big. Also i am concerned about pulling this beast out and placing onto my school desk. Does anyone use the new 17" MBP as their primary portable laptop? Do you think I should make the switch? I prefer the 17" because of it's superior battery life to the 15" MBP.