I actually had to buy a cheap USB DVD drive after buying my latest optical drive-less Alienware laptop but only because I wanted try try some of my old PC games, other than that I have no requirement.
I use Steam for games and Uncle Jim for films - download/watch/share/delete.
A month and nobody told me I'd been missing out!!? Good to hear from you. :)
On topic, i've got quite a few DVD and blu-rays but I have been managing to decrease the amount of space taken up recently.
Also got a collection of stuff download from Jim but there's not as much thereas there used to be, either