I don't think it's a good idea these days, there are a number of reputable bitcoin casinos here but they've been going for a number of years now, I think money has already been made there.
A lot of the newer casinos where you could potentially make good profit by investing in them are unproven trust wise, I just don't think it's worth the risk.
after look at vod's short statement in page one about the real investor in gambling business is just the owner
i think it's really makes sense , why a casino open an investment option?
it's just because the owner have no more money to invest or they are afraid to invest more
so once people come to invest it's feels like a donation , due noone guarantee you a profit even your money can get back.