When I was looking for an advantage that slots have, for example, if you compare them with betting, I couldn't understand for a long time: what is it that makes them so attractive to many people, and even though you can't control the result, but apparently playing slots is like a ladder or a road, where each step can be a winning one. This is in contrast to betting, where you have to wait a long time for the result.
And in general, it would be good for a bettor to understand the sport he is betting on.
The advantage of online slots is that you can access them 24/7. It means it is nonstop, which also means you can keep on going as long as you have the money, which is suited for those who have deep pockets and want to test their luck to see if they can get a high multiplier. That's the other advantage of it, high multipliers can come out any time, and some of them can really be surprising.
Vice versa with sports betting. Low multipliers in one bet, and it takes a lot of time if you have a preferred sport to bet.