Casinos make money off of winners, either because they come back later and (eventually) lose the money they won, or because they convince others. [HOST] › cruises › ships › msc-virtuosa. slot machine jackpot payout. what happens when you win a jackpot at a casino. Casinos make money off of winners, either because they come back later and (eventually) lose the money they won, or because they convince others. what happens when you win a jackpot at a casino. Hit the jackpot at our spacious bar in Le Grand Casino. . Get that James Bond feeling, order a drink from our skilled bar tenders and cast an eye over the Casino.