GreyHawk to me was the definitive setting for D&D, not Forgotten Realms. If you had read any of Gygax wonderful novels with Gord in Greyhawk then you can get an idea of how great that Campaign could have been. Sadly Gygax's involvement in the future evolution of D&D was terminated prematurely.

I don't understand why WotC doesn't invite him back. They don't even let Richard Garfield develop on MTG anymore. Why do corporations feel the need to divorce creators from their projects?