Hey guys I am getting a brand new set up after over 5 years with a 17" mbp. That thing had zero portability so I am trying to pick out another set up that will last me similarly as long or more. First would be the rMBP base model. Large screen and nice specs but do I really want to be traveling with $2.2k worth of computer in my backpack? So what do you think about getting an 11" mac air with the i7 processor and 8gb memory and a thunderbolt display? That works out to roughly $2.5k with tax which, although being the more expensive of the set-ups, has all of the bells and whistles but has portability and would also mean I am carrying around a significantly less expensive computer during my commute. What do you think?? Thanks!