I play all three. I've tried other instruments... flute, clarinet, violin (sounded horrific! was sent to the garden shed to practice it was that bad lol), guitar (could never cope with the odd position I had to get in to play it lol)...... but I only seem to be able to cope with the keys! I love keys. Had organ lessons from being 9 years old to 15, then switched to piano for a couple of years. Did some exams with the Royal college of music, London and got up to grade 7 theory and grade 5 practical.
I just play for my own enjoyment. Playing music for me is very therapeutic and good for stress

I have a yamaha CVP307 clavinova and I'm looking into getting a Yamaha Motif Keyboard soon