Yeah no XD Vegas is not so kind.
The casinos would not give a damn how you're cheating.
Well, okay. They would to some extent, for the sake of future prevention. And sometimes people get really damn clever. There was a great story about some Russians who figured out some insufficiently-random random-number-generator code in one set of them, and engineered backwards to be able to play the odds just enough to make a killing off gas-station slots in various places, or something like that... but that wouldn't have worked in a casino, because:
They understand probability, and they know what their odds are. They'd know he's cheating, as a simple factual matter. He would have been asked to leave way sooner into his win streak. (And then probably blacklisted from all the casinos in Vegas, I suspect XD)