Yes, their order book for the A320Neo is that full. As is Boeings for the 737 if I remember correctly. One can always pay more and hope someone else is cancelli

Yes, their order book for the A320Neo is that full. As is Boeings for the 737 if I remember correctly. One can always pay more and hope someone else is cancelling so, this approach ain't working at scale so. And in the case of Airbus, that is based on a delivery rate of around 60 aircraft, single aisle only, per month already.