Is your work art?

This sounds like a loaded question but I am prompted to because of a line in the movie I watched last night on the life of Georgia O'Keefe. In a discussion with her husband she was angry with him for exploiting her art. His comment was something along the lines of " your WORK is just WORK, it is only ART after someone buys it."

I thought that was a powerful statement. I know many people who are artists but don't sell their work, musicians who are artists but don't play for money and a great example for me are sidewalk artists who's work is fleeting. On the other hand, I also know people who call themselves artists and, for me, they are only crafters who follow other people's patterns and instructions.

So my question to you to start the week out is: " Is your work art even if nobody ever buys it?"