My own tastes happen to be in tune with what the public wants. I think that's the reason my batting average is so high, not because I've discovered some brilliant formula.
Having a think about whether you can afford 'this' or 'that' is a good discipline to have, to maximise what you can achieve to the highest standard.
Audiences aren't going to get rid of me. One thing I can say, with absolute certainty, is that my shows will still be performed when I'm dead, buried and forgotten. They're going to absolutely outlive me, which is a wonderful thing to think about.