To the OP...
You said "Hollywood Casino". Is that a casino in Hollywood or is it Planet Hollywood in Las Vegas? Because according to the poker room supervisor in the casino where I work, vaping is allowed. vaping has been allowed since the World series of poker ruled it isn't smoking. They only require you be respectful of others. If players complain, the poker room supervisor has the right to ask you to get up from the table.
You said "Hollywood Casino". Is that a casino in Hollywood or is it Planet Hollywood in Las Vegas? Because according to the poker room supervisor in the casino where I work, vaping is allowed. vaping has been allowed since the World series of poker ruled it isn't smoking. They only require you be respectful of others. If players complain, the poker room supervisor has the right to ask you to get up from the table.