well it varies day by day because we don't know how many user win and losses, still in the long run, gambling site will always win but you will need to find one with good trust and proven fair else its mostly scam
Ya make sure we check the background of the gambling site we wan to invest.This is because some site got hacked when the they already have a huge amount of margin from investor.Maybe the real hacker or maybe the owner of the site opening a loophole and claiming the site was hacked.
In this forum, you can find a good casino who accepts a bankroll investments and one of then is crypto-games. But you should know that sometimes you may lose money if anyone wins big amount and that's why you shouldn't put all your money in a single casino site. If you diversify then you can make a good profit in the long run.
Investing has some degree of risk. Investing in bitcoin is quite risky and investing in casinos even riskier. Those kinds of investments should only be done with money you can afford to lose. This being said, I have to say that Ive invested in crypto-games.net.
If the site you invest in is legit, doesnt commit fraud, and is well managed, you can have some short-term losses but the longer you hold your investment, the more likely it is that you are going to have good profits.