Vince, Welcome to the GWOF. No, the navigation is not worth the money. I have used mine a few times with limited success, I do much better with my ipad. For the most upgrades, if your looking at an 1800, I would be looking at a 2006 and newer. These bikes can handle the miles, so like was already said, make sure the bike was maintained and you will be fine. Good luck in your search and enjoy your new wing when it arrives..
The FIRST GWOF IB TRIO. July 16, 2016
Fossil92 - WingNutGordo - GoldWingKing
GWOF IB Couples ride. 1008.3 Mi. September 14, 2016
GWOF IB Couples ride II. 1045.6 Mi. September 16, 2016
Traxxion Dynamics, Mega Monte.
Bridgestone Driveguard RunFlat.