With $1,000 in winnings, you'll probably just sit back down and keep playing, hoping for another big win.
But chances are, you'll end up spending it all over time anyway.
I would go and play casino slots again and again and again , I would withdraw most of the money after fulfilling wagering requirements and keep the rest as casino balance and bankroll
If I got $1,000 specifically for the casino, I’d probably put most of it into poker and keep some aside rather than risk the whole amount in one session.