Why the Xbox 360 HD-DVD Drive is External
Digital Media Thoughts has a good article on why Microsoft opted to keep the HD-DVD drive out of the Xbox 360 Elite (or any other Xbox 360 console). They missed one key advantage: portability. The external drive works just as well with my laptop running Windows Vista as it does with the Xbox 360. Not that I prefer watching HD-DVDs on my laptop, but you can buy one drive and move it around the house instead of needing one for every room.