I have an external one, still, yes. But then, my car still plays CDs, so I have a changer in the back and burn some tunes... mainly because it's easier than fussing about with Bluetooth or whatever off my phone.
I do have three 5.25" drive bays, which now get used for things like fan controllers and self-built mods. Very useful in that regard.
I know others who use them for DACs, OC panels and random other gubbins.