Lotteries in crypto gambling are also popular and already have their own fans. And some casinos provide this lottery in their casinos. But that doesn't have anything to do with magic.
Is it? Can you mention some casinos with lottery games where there are many active players playing the lottery game?
Most lottery in crypto casinos is being used for marketing/promotional tool where players get tickets for their wagering activity, but for the real lottery games, I cant see it as popular.
If you do some researches in this forum/gambling board, there are many failed lottery based game casinos because of the less interest from players/forum members.