This one was out of my hands, there are marketing shows and there are deliveries. For about 32 years, I have seen deliveries take place at our factory, and I know one took place the other day (September is part of Indian Summer in New England).
I do think that "delivery" is different than "placed into service" which is when the pax go to rigs in the machine. I think those who equate delivery with placed into service are incorrect.