The Miami sale was actually $1.2 billion. That's what us accounting types call transposed numbers - they can be deadly.
Still, $1.2 billion is an amazing amount for a crap franchise.
But I have to ask, where does all the money keep coming from? If subscription TV viewership drops significantly, there's no way that doesn't start to push the needle in the other direction at some point. Revenue has to come from somewhere, the pockets of the fans.