New Navara price drop affects current owners. Nissan needs to compensate customers.

I have been a Nissan fan for may years. I have had 3 Navaras and thoroughly enjoy them. My disappointment comes when I pay the price you advertise the vehicle for and then after a few months I can not sell my vehicle because the price Nissan is selling brand new ones is lower than I paid for mine. I paid R550 000 for my brand new Navara. Now Nissan is selling Brand new ones for R489000. How does a customer who is loyal to the brand recover from that reduction in price. No matter when I sell my vehicle I will always loose out. Nissan will trade in my Navara which has all the Nissan approved extras on it for R440 000 after using it for 5 months and putting on 17000km. Where is the sense in that is Nissan taking their customers for a ride!!!