Greyhawk has been an icon associated with D&D for many years now. A lot of the deities and spell names owe Greyhawk. I believe Wizards had the perfect opportunity to use Greyhawk instead of the Forgotten Realms because the setting has the perfect combination of lore in specific areas while most other areas have none. You can put almost anything into Greyhawk and it would fit because of how generic the world is. Forgotten Realms is not good for this because of the vast amounts of continuous lore that is constant. You can't really have ground breaking events happen unless it follows specific lore. If you aren't careful, you could end up with an event that actually makes no sense. Greyhawk is better suited for this and I just can't fathom why they didn't use this setting as the core. Make the setting popular if that's the problem.
I just don't want to see Forgotten Realms be the catch all for everything while there is a world already out there that is better suited.
I just don't want to see Forgotten Realms be the catch all for everything while there is a world already out there that is better suited.