Most are either going for song or dance, lyrical or rhythmic.
I don't like the way the lines get buried on an organ, so I don't see it as being superior to the piano. If I have to work just to hear what I know is the melody, that's not good.
I'd still put piano on top for completeness. Voice for expressiveness and possibility with one line.
I think technology will give more opportunities too for shaping music. More sounds, more control. Once it gets better though.