What you also can do is invest in a whole new casino the profit will be larger but the risk is also doubled without any doubts.
Investing in a new casino is very dangerous since they have no reputation yet and just starting to build one you won't know what to expect in the future unless you know the casino owner irl.
i agree but also taking risks sometimes will pay you well, although i also say you should research and know the owner first and see how serious they are about their site.
casinos like primedice, crypto-games,... were some day new too. and now they are big. so if you could find one of those in early days when nobody invests you will be a big share holder.