That's interesting I haven't tried that but I don't like the part that my share of profit will comes from the win and there's also a chance that I will lose my investment also if they lose the game I could lose everything also here it's like I'm also in a gamble where my share of investment depends on some factor, I am more into investing on it if they guaranty an income.
You misquoted your post, anyways casinos rarely lose and if they did it's only temporary since they can recover. From all of the casino that accepts investments there's probably only one or two that i've seen struggled to bring profit for their investors and it's because of bad management.
This looks interesting for big time gambler although there is still a risk because you will depend on the bankroll to make a profit, it's a good way to diversify your investment in the gambling sector, hope we see one guy investing on this kind of plan or scheme and share his experience if he made a profits or made a loses.
There used to be one user here that shared his investment from different gambling sites. He reported his monthly profits and losses for a year at the end of his investments he end up making profits despite having losses from a few sites. I couldn't remember the link of the thread though.