Total amount bet on sports in Nevada since 1984: $57,274,051,000 ($57.3 billion)
Total amount won by Nevada sports books since 1984: $2,613,725,000 ($2.6 billion)
Total amount won on football bets since 1989: $963,673,000 ($963.7 million)
Total amount won on basketball bets since 1989: $620,128,000 ($620.1 million)
Total amount won on baseball bets since 1989: $317,184,000 ($317.2 million)
Overall casino win percentage on sports betting since 1984: 4.56%
Average casino win percentage on football since 1992: 4.53%
Average casino win percentage on basketball since 1992: 4.69%
Average casino win percentage on baseball since 1992: 3.01%
From this data we can quickly takeaway that baseball is the least profitable sport for sportsbooks. That would make it the most profitable sport for us to bet on. Point noted. Another takeaway is that sportsbooks may take in a lot of money, $57 billion over the past 27 years, but they only win a small portion of that money with $2.6 billion over the same period.
The gross amount of money bet and the amount of money the casinos win has increased over the years and will continue to increase with new innovations to sports betting by sportsbooks like Cantor Gaming.
Sportsbooks have never been a big money maker for the casinos. Like poker rooms, they're seen as an amenity for guests more than a profit driver. This is why we're seeing more sportsbooks being outsourced and/or amenities cut. As long as we have big TVs and comfy chairs, we're cool.