And notably, all the build slots for the A320neo family are sold for the next few years; I believe an order today won't be delivered till 2022 (and if you have

And notably, all the build slots for the A320neo family are sold for the next few years; I believe an order today won't be delivered till 2022 (and if you have other aircraft going off-lease, especially if some other airline is taking them on, you might not be able to wait). And you won't order today, because sales take time. If you have a delivery date prior to that for the 737 MAX, you may well just want to wait and hope everything gets rectified before your delivery. Boeing also have an incentive to shift their product, and with their negotiating position weakened will likely offer to sell their product for a lower price than they currently would to customers who already have 737s.