Among the many gambling games online, I feel sports betting is the one that will never go out of style. Sports are always around -- NBA, football, boxing, MMA, and fans naturally want to add excitement by betting on their favorite teams or players. Unlike slots or crash games that are purely luck, sports betting lets you use knowledge and stats, which makes it more engaging.
As long as sports are here to stay, then sports betting will go with that. As you have said, there are games that are world wide success already, even boxing or tennis are coming of age right now. So I doubt that sports betting will just disappear.
On the contrary, we have seen a lot of crypto base casinos that starts with just casino games but are venturing into sports betting as well. And it just shows how it becoming popular and every casino wanted to get a piece of that billion dollar sports gaming. NBA will be opening next month so that is another sport that casino will have to cover and bring money to them.