If I were a billionaire, a pro team is the last thing I would buy. Each league comes with numerous strings attached to all team owners. You don’t feel like a billionaire when you join a club that tells you how to behave. And is dependent on revenue from the likes of China and American advertisers. It can’t help but be frustrating.
The NBA seems to be the worst. I would rather be an NFL owner, at least you can be one of the guys. Just don't be too obvious about it.