Abandoning Flickr for Facebook?

Despite many attempts, I've had trouble talking family and friends into springing for Flickr Pro accounts. Most all are now posting regular updates and photos to Facebook, which has me thinking. Why should I renew my Flickr Pro account? Most everyone I know is using Facebook now, and Facebook's photo features are free. That said, I'm letting my Flickr Pro account expire. I'll begin posting photos to Facebook, instead. Anyone else doing the same?