One of my biggest regrets in life is that I've never been in a band. I always let the fact that I can't sing keep me from this. I didn't want to have to learn a whole new instrument like the guitar or the drums.
However, I do play piano so I would be able to transition to the keyboard pretty easily. I could learn about midi interfaces and shop now. It is one of those things on my bucket list that I don't know if I'll ever get to cross off which is why it's one of my biggest regrets.