Well, my previous PC still had disc drives -- two in fact, a DVD reader and a CD-RW. Only because I didn't get a new case and didn't have any replacement front panels, though, they were never connected because PATA doesn't work well on a SATA-only board. Also still had a 3.5" floppy drive, also not connected, for the same reason.
Now my case doesn't even have a bay to put a drive into.