All,
Why make rules? Why not just accept computer audio as another source component in your system which for me includes gear to play CD's, DAT's, Compact Cassettes, SACD's, and LP's.
Play it back as you please. I've got all of my media in my iTunes library now, except SACD, and it's real convenient; but, sometimes, I like to listen to the original rather than a copy, even if it's a loss-less copy.
It seems the CD player may be superseded soon by Blu Ray players which appear to be capable of playing back just about any sort of disc. I like that. It means I can enjoy CD's for years to come.