There are still people who can statistically make money betting sports, so I'd be hard-pressed to call that any less of a game of skill than daily fantasy sport

There are still people who can statistically make money betting sports, so I'd be hard-pressed to call that any less of a game of skill than daily fantasy sports or poker. For a long time, professional sports leagues in the US were extremely anti-gambling because they didn't want to be associated with it and they were worried about integrity. However, the NFL got in bed early-on with fantasy sports, so they didn't fight things when it became clear that daily fantasy sports were becoming more popular, despite clearly being gambling. Now, the NBA has come out in support of bookmaking. They were an interesting league to do that since one of their refs was caught tampering with games a few years ago. However, analytics in the NBA have become extremely sophisticated (they have tech that tracks every step each player makes), and looking back at the data, they could have caught that ref much earlier based on data. So I'm assuming they are confident enough in the analysis to thwart any tampering and are now trying to get into bed with the sports books in efforts to increase their revenue.