Most people nowadays probably buy a $500 laptop and a $200-300 game console. What if you could replace both of those devices with a dockable iPad that runs around $600 ($500 for the iPad and $100 for the dock and controllers).
Sure, it's not going to be as good as a $299 PS3, but it will be much better than the PS3 at things like email, browsing the web, and doing computer related functions. When you get home, drop it in the dock and watch Netflix, or play some games.