The problem with such a "play" is getting paid off. A jury has a lot less sympathy for a bum/gambler/crook. Maybe more sympathy for an author of gambling corn.
It might have been that way "back in the day," but not anymore.
The current population of Las Vegas is very mobile, not particularly affluent, and as with all Americans able to be manipulated.
To a skillful trial attorney they're like putty in his hands.