Not sure what the entertainment is on your cruise, that is a real shorty! Perhaps you will be lucky and Kenny Smiles will be on! Sit way back or upstairs if he is!! Likely they will be trying to impress you for a future cruise and offer at least one "production" performance with all the dancers and costumes. Don't expect Broadway here. If your mom at 80 is like mine was at that age, she will be sleeping comfortably at the time the shows start! But if she is game, definitely take her unless she has a "bent" in preferring the casino!