Does anyone use their Macbook as their primary work machine? Or is the MBP the better selection for this purpose? By "work" can mean different things. I am referring to office work mostly. Word docs, presentations etc. Probably some light 2d graphic work once in a while as well. And in my office I would use the MB mostly with external monitors but need some portability. I am wondering if the Macbook is best suited as a secondary or very light use machine or if it can handle the role of a primary machine.