The chance to earn more money every once in a while when you are able to sell more than 50 seats? Depending on the stage length, break-even for the Q400 is said to be between 29 and 36 seats. What are the comparative figures for the Saab 2000?
With the Q400, compared to 50 seater jets, you have a lower break-even factor with 30 free seats thrown in on top.