Watch a MacBook Air Get Blown Up by Firecracker
Going to a new computer from an old computer is a great experience. Everything is faster and just plain better. Of course, there's the issue with what to do with the old one. It can become a secondary machine, or you can sell it to let it serve someone else.
Or you can just blow it up with dynamite.
That's what these guys did after Apple announced the new MacBook Air.