, My experience is that the best time to buy a bus is the summer when school is out. The school districts do the major evaluation of thier buses and as you say wait until the new ones are in and ready for service. Thier budget year is not from Jan to Dec. It is for the school year, Sept to June. Here whereI live I was told by three districts that they could not release the Crowns thatI was interested in until the summer due to budget constraints. One district had thier Crowns sitting for a year with out use but would not release them. Things may vary from place to place but that was my experience.