I notice it more on airplanes when people want to watch their own movies. I would also say that about 1/3 of people that work primarily from their laptop, and

I notice it more on airplanes when people want to watch their own movies. I would also say that about 1/3 of people that work primarily from their laptop, and travel a lot (no easy access to a desktop monitor), will probably have an iPad as a second display as well.