Casinos don’t have to rig roulette in order for the game to produce a guaranteed profit – that profit is baked into the game’s design. If you could find a roulette game that paid out 1.11:1 for an even-money bet like black/red, you should absolutely play that game. No casino has ever or will ever offer this pgslot game, but hypothetically, it would be a solid choice. You could make black/red bets all day and have an even expectation – of course, that still means that you’d be just as likely to lose as to win over the long term.