The link you provided is about a casino which I suppose has been running its early year only and not really a casino that has proven its reputation and credibility over time. Forgive me for saying this, but I think OP should not delve into casinos that haven't established itself in the industry yet. Since OP is looking after casinos that can provide good dividends for the holders, I think it's much appropriate to suggest those casinos that are known for their reliability and reputation that can give holders a pleasing amount as time passes by. I've read that the casino Casitsu isn't even a fast growing one which is needed to have a high return and fast return at the same time. But i believe that the Casitsu can improve their service and their traffic once they managed to  cater most of the gamblers demand nowadays. After all, it's still a competition.

As for OP, I suggest you look into casinos that have an established reputation already. Do not fall into the perks introduced to you. Instead do your very own research with the help of the suggestions here to dig deeper which ones are worth it to invest in. Personally, I still see bitcoin to be the safest of them all. Although I admit you just have to have a patience if ever because it's not like other tokens that suddenly pumps and dumps if you want a fast return.