I'd like to reiterate that my feathers were never ruffled; the disagreement with the definitions is indeed a philosophical matter and further, I have fun with these kinds of topics. I hope that no one was offended by any of my remarks!
I agree with Sergio, certain things are implied - perhaps unintentionally - when we use various terms. "Owner" sure sounds cooler than "caretaker" to me. And I agree with Bob's post, too.
What we all share is an enthusiasm for these great instruments. That's the thing that brings us together. And "we" is stronger than "me".