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.
Yes, you can make a good profit if you invest on a new gambling site. But you should invest only if you know the admin and think that they will not scam otherwise high chance that they may cheat investors. So I suggest even though profit margins are less go with well-trusted sites for these investments instead with new sites.
although I saw there is no gambling site that is to be a scam, but to choose the investment in gambling sites as trustworthy should be the first choice dude, and I think the gambling sites that are well known and long enough operate is the most important second options, because I think that when you invest in gambling site are still new, you probably will not get results quick profit, because they only have a few users only right ?
There is a lot of bitcoin casino that offers reliable investments eventhough there's a risk involved and a big profit it depends on how to managed your gambling strategy. Researching for best sites is the most important thing to do before investing with btc casino because scammers are often to promise and present good presentation of their advertisements not in actual aspect of gambling.