I have $3000 USD to invest, is it worth it?
What sort of returns should I expect
In general casinos are very profitable. It the most promising industry. So yes if they are running correctly.
I agree, casino is one of the most profitable business, just make sure the casino reputation or casino website before you put your money, you need to make sure the casino is not a scam, if you think all of that is legit then investing in casino will be very profitable