Magic Mountain has its niche in the SoCal market. If Six Flags ever decided to transition back to theme parks from iron parks, I think it'd find more immediate success starting in markets where it doesn't already compete directly with Disney and Universal.
i like a log flume every now and then but i'll gladly visit parks that have a zillion roller coasters versus a theme park with dark rides, etc.
i mean, if what you said is true then why do places like Cedar Point and Magic Mountain exist??