They don't come with DVD playback, the user has to install a codec or standalone player like VLC to enable it. Same as Win8.
Ubuntu 13.04 can play DVD's using it's built-in "Videos" application, no 3rd party software or additional downloads required. Don't believe me? I just did it, fresh install of Ubuntu only a couple days old. I'd be glad to shoot you a video. Although if someone really wanted to watch a lot of movies on any system, I'd still recommend VLC.
My only point in bringing this up was, that if someone buys a new computer out of the box, someone who doesn't know a whole lot about computers (unlike everyone on this forum obviously, yadda yadda), and see the label for DVD on the drive, pop in a disc... they should be able to play it with no hassle. This is just such a basic feature these days that everyone expects to be able to do it without having to think about it, ya know?
Anyhow, carry on with your other arguments now.
