Sure, the initial cash infusion will help, but, then what?
It seems jai-alai is at odds with or, perhaps, even incompatible with the casino paradigm. Casinos want people betting hard and fast, not sitting on their duffs ... spectators for 15+ minutes at a time. Is this why it didn't last in Las Vegas and Reno?
Which scenario do you think is the more likely?
1) Casino promotes jai-alai and encourages slots players to try it
2) Casino tries to entice jai-alai patrons to play slots
If you picked #2, doesn't that make jai-alai's demise a self-fulfilling prophecy?