for some people gamble on a game like dice are so fun rather than gamble on sports or card games , it's okay just the matter of having different taste. just don't gamble like a mad , as most people who gamble in dice usually go mad quickly , the game seems really works with that way to hook people in short time quickly and get their money. idk lol.
Yes you are right, people have different taste but actually people like me who love sports betting but due to slow results often end up betting on the dice sites 
and this is why dice is more popular, it is fair (can be verified) and the results are instant and hence no strategies can be applied too. Always quick results are not profit making even we play with some strategies like martingale.