It's interesting now that basically a CG set is the same cost as a real set. So like if you're going to build a CG house in the suburbs it costs you $200 000. And if you were going to build it in a computer it'll cost you $200 000. It's the same... the relationship is exactly the same.
Our solution on 'The Simpsons' is to do jokes that people who have an education or some frame of reference can get. And for the ones who don't it doesn't matter because we have Homer banging his head and saying 'D'oh!'