Perspectives compiles over four decade’s worth of The Official Helicopter Blue Book® resale pricing data. Each data point shows the helicopter models’ average base resale prices at the first calendar quarter of each year, regardless of the helicopter’s year of manufacture. Compared to the components’ service-life used, the age of the aircraft has little impact on its value. Price spreads shown are based on the realities of then-current market scenarios. No adjustments have been made for inflation: 1979 values are given in 1979 dollars, 1989 values in 1989 dollars, and so on through the present. All values are given in US dollars and are net retail prices. Data points begin when resale data started to become available for a particular model. For instance, if a model started production in 1990 we may not have received resale transaction information until 1993. HeliValue$ Perspectives, registered as Perspectives: A Helicopter Resale History®, was once sold as a separate publication. In 2014 HV$ made Perspectives part of the Blue Book subscriptions.