Since purchasing a Zune player two years ago I have moved away from listening to cds. I'm not one for illegal downloading of music, but I am wrestling with whether it is worth it to start purchasing new releases in mp3 format via the zune marketplace or amazon rather than purchasing an actual cd. Mp3 downloads are cheaper, but I do like security of actually owning a physical copy of the cd. On the other hand I have started to run out of storage space for cds, and once I rip them to my computer I really don't use or look at the cd case again. What do you guys think? Is it time to join the digital age? Is owning a physical copy of a cd/dvd a thing of the past?