Somehow I doubt that people are interested in two copies of the same aircraft (it's wasted money in my opinion)! :(
I'm not sure if Captain Sim would use the money to hire someone to work full time. And I wouldn't blame them. It's extra money in their pockets for all their hard work, ;D

Besides, I believe that most of the developers do it in their spare time. So it's more of a hobby that makes them some money. Not a lot of money either. And because of that, it is not a full time job for them. :-/