Blackjack Pro: Well, the casinos have become much more cautious since the 2008 economic crisis. That affected business everywhere and the gaming industry was no exception. The top bet allowed at 21 used to be 25,000. Those days are over. Top bet these days is 400 or 500 a hand, more than that and the casino manager is called over and the action pretty much stops. Being the biggest bettor at the table didn't used to attract quite the attention that it does now.