All primary flight information required to safely and efficiently operate the 737 MAX is included on the baseline primary flight display. This is true of all our commercial products. Boeing doesn’t put a price on required safety features.
Crew procedures and training for safe and efficient operation of the airplane are focused around airplane roll and pitch attitude, altitude, heading and vertical speed, all of which are integrated on the primary flight display. All 737 MAX airplanes display this data in a way that is consistent with pilot training and the fundamental instrument scan pattern that pilots are trained to use. Some operators have their own tailored training requirements and have requested that we also provide AOA information on the Primary Flight Display, and we have offered the optional capability to provide that information. However, not all customers wish to include this feature on their Primary Flight Display, so it is offered as a customer-selected option. With the software update, customers are not charged for the AOA disagree feature or their selection of the AOA indicator option.