So you regret purchasing the ATV2 because of lack of internal disk space on your computer, but the WDTV is better because you can use external disks? Say what?
Well, it makes sense. Having an external hard drive plugged into the WDTV under the TV is fine, but having to plug an external hard drive into the laptop every time he wants to listen to music/watch videos on the TV would be more awkward.