Apply the simple economic principal of supply and demand. Typically in the fall through winter there are last year's leftover units as well as new units sitting. So a surplus of inventory that they really want to get rid of because it not only starts costing them a lot of money but they want to start moving the new ones. This time of year however they may be low on inventory of used units as most used units are a result of buyers who purchased new units. So in the fall and winter supply is usually higher and demand is usually lower. That said, seasonality trends thin as you get further South. So in Fla you may not see such a case. Spring is probably the worst time to buy because demand is highest as people ramp up for summer vacations. According to RVIA data, Jan is typically the lowest month for RV shipments to dealers and April is usually the highest.