Agreed. I mean, USB drives and memory cards hold more than CDs and DVDs nowadays, so the lack of the optical drive is not as big a detriment as you might think... at least on the go it shouldn't be. Otherwise, there's always Alcohol 120% where you can image the disc onto your HDD for your travels.
That said, if it had a slot loading blu-ray or something like that, it would be even more appealing.