Ken, I don't think there is any rhyme or reason to when the model year starts. Renegade is the only manufacturer that I know has the '06 price sheets out, Haulmark may. We are ordering 2006 model year Renegade coaches now for April or May delivery.
You may find a good deal on an '04 in-stock, most likely because they were purchased and built before a couple of price increases.
'18 Renegade 45'
Volvo Twin Screw, 500 hp I-Shift 12 Speed
30' Renegade Stacker Trailer