Check the casino's tabs and pages and see if they're showing how much they've got in their bankroll. Some casinos and dice sites do this and if you're not satisfied with the current one that doesn't show it to you then leave them. They don't have the obligation to show how much they've got especially the reputable ones because we know how huge they are. I think it's not a matter to me as long as I know where I am gambling and I have an idea about the track record of the casino.