system
Given the following post, respond as if you're commenting on Reddit:
human
[Next] Why play blackjack?

In the Nicholas Cage movie next, he can see the future up to 3 minutes right. He uses this to win money at blackjack which eventually gets him caught even though he plays pretty conservatively right.

But why blackjack, the one they monitor like crazy. Like you could sit and play roulette for an hour and win a little then lose it, you could even do some monster bets throughout the night and intentionally lose if you know what's coming.
 All you would have to do is make sure you hit one huge number and then walk and it would appear to any one watching as a lucky hit at the end of a bad streak.

You could do this with any game in the casino and attract no attention at all. You would know if a slot would payout and just catch a good one.

But really you could make enough playing roulette to not have to go back all year with ease.
gpt
Because they monitor the entire casino. And it is actually possible to be "good" at Blackjack. As long as he isn't being aggressive or flamboyant he can probably come back to the same casino once every couple weeks and walk out with a modest take.   


If he tried that at a Roulette table, it would be less noticeable for one go but the pattern would be easier to detect. 

  
And (speculatively) it's possible that Roulette wheels invite just enough chaos that they're unreliable with his powers. The lady standing next to him leans on the table slightly differently, and suddenly he's lost it all.