depends on the cash flow of owner
If cash rich, and not too interested in the residual value, there are such people around), then a cheaper airframe, is an option.
If they have access to in house labour then the cost of operations will be reduced too....
Sometimes the detail is hiding behind the face.
Many happy hours on a 600 / 601. Great pax friendly aircraft, and plenty of crew space too.
A little exiciting when very heavy, and seeking a high altitude to cruise, but then we are professionals.
glf