Quoted from ForceFlow:I can't imagine that South Park would be a financially viable theme. The Sega South Park isn't wildly popular, from what I can tell.
It's popular on location. It was a great earner. It's not popular with collectors because the game kinda sucks. Theme is great though. Just like DE Simpsons vs. Stern TSPP. Simpsons is a great theme...DE Simps sucks, Stern Simps rules. If anyone were to do a TSPP-quality SP game, it would do great.