The only notoriety OK has is for people fleeing from it because it is a dusty wasteland. Also why would you put the capital in the middle of nowhere? Yeah it may be central geographically but it is still 1000 miles from anywhere important. Detroit is better because of it's proximity to pretty much every major canadian and eastern city. OKC would just make it an easy target for crazy southern militias and mexican cartels. The cartels another good reason to have the capital on the canadian us border. Real life isn't civ4, there's no distance maintenance from the capital. I can't thing of a single major capital in the world that is centrally located.
Singapore, Vatican, Monaco, etc...
