Agree, but what I meant by more expensive was the new plane costs more than if they just kept making the old design through 2019.

Fuel savings and etc is always nice to strive for, but now human lives and insurance companies and airline companies are paying the price for the geometrical/software fault created by Boeing's corporate structure

If this continues, it's going to be the Concorde all over again really-- a better performing but a tad more unsafe plane