3 reasons to have a laptop instead of a desktop
You can bring your work home with you and sit on the deck and sip iced tea while working on stuff.
When the power goes off in the building and everyone around you does a cry of despair, you can keep doing stuff.
You can sit on the couch, you can sit on a lawn chair, you can sit in your bed, you can sit at a desk, you can sit on the bus, you can sit on the plane, you can sit on the train, you can sit on the floor, you can sit beside a door, you can sit outside, you can sit inside, you can sit in the mall, you can sit in the hall....