I do all my "heavy" computing at a desk, so I don't need a lot of power when I'm out and about. Mobile, for me, is for fun and convenience (saving a trip home or to the office). I want the most portable "big" screen I can carry. Surface RT seems just right to me. Thin, light, and the screen is big enough to be usable without being prohibitively large to carry around. Also, of the more portable tablets I've looked at, the Surface is the most sleek looks-wise.