Roughly $9 million per 717. They probably have a lot of cycles on them AND they would require a whole training program ... but, that's less than half price.

In other news ... Boeing has once again stopped the 787 production, citing a need to reseal fasteners int he fuel tanks and fuselage structural issues. They are now up to 44 jets which have to be extensively modified before they conform to the design specifications. Some of these jets have so many changes, they have effectively been abandoned.