Mac Min - DVD Drive = iTV?

So I know that it costs less and is easier to configure, but if you already have a Mac Mini, I can't see any conceivable reason to buy an iTV. And let me make it clear that if it was just 17" wide so that it matched up with the rest of my home theatre, that would be enough for me. But it seems to just be a squished mini with no HD and no DVD drive.

I'd love for someone to prove me wrong, cause I've been waiting for the Apple set top box pretty much since I started keeping MPEG-1 files of TV shows (holy crap, that's been like 6 years ago!).