I'm not being offered a constant stream of wonderful parts with wonderful directors that would keep me away from the theatre. When they turn up, I do them.
Every time you work is a challenge. There's a constant worry about it, and it's a side of acting I don't like.
Will I miss Gandalf? Well, I don't miss him, because people are constantly coming up to me mentioning him and talking about him, so I don't feel that I've lost contact.