At some point I think it’s going to blow up in their face when there’s actual evidence of games being rigged. In the mean time, there’s a lot of money in it.
And as for Kernewek’s comment on lotteries funding things — in some states, at least, the sportsbooks and casinos have had to pay some significant fees and taxes to enter the market. I’m going to be curious how much tax revenue Mass. has made from it, because that was a major selling point of letting the sportsbooks in.