That is a good point, however, as far as Thrill Rides go, there really is NO competition with Cedar Point. I would say USF competes, thrill ride wise, with the likes of Kings Island and Kings Dominion and even there, they do not have a clear advantage.
As for the marketing. . .point made. I live in Ohio and I would never plan a trip to Orlando to vist USF. Never. Now I may eventually plan a two week vacation to Orlando where I spend a week + at WDW, a day at USF, a day at Sea World and another day running over to the Cape.
One post said they the two can not live without each other. I think that is rather one sided. USF could not live without WDW. I offer a guess that WDW would do just fine if USF folded.
Just my two cents from a Season Pass holder at King's Island.