I know the gambling business is a saturated one nowadays and there is a heavy competition among houses. But, basically with provably fair thing, I am afraid that houses cannot be sure about being profitable within existing customers base and their spending money.
In some sense, when a gambling house grows bigger in terms of customer base, the chances to be defeated in the provably-fair-environment is more. Does it mean there is only 50% chances to be successful as a gambling business owner?
What am I missing and how we do have lots of gambling houses when provably fair is a neutral to them?
Casinos have a house edge, and that's the way they ensure the success of the project. The house edge is a small % that the house has of advantage, let's say you are playing 1 dollar bets against the house with just flipping a coin. If you lose you will lose the dollar, but if you win you will get 0.95 dollar. This way is how the house wins in the long run.