Maybe it's just me, but I find the Driver Assistance package to be a nice value at $2,200. You get a good amount of features, and have no doubt other carmakers would charge more for similar features.
If we end up buying the JX, I would probably want this package just to futureproof the car. The nice thing is that you only need the Premium package in order to get this package.
Intelligent Cruise Control (Full-Speed Range)
Intelligent Brake Assist (IBA)[*] with Forward Collision Warning
Blind Spot Warning (BSW)
Back-Up Collision Intervention (BCI)
Distance Control Assist (DCA)
Active Trace Control (adjusts vehicle braking and engine torque to help enhance cornering feel)
Heated steering wheel
Remote engine start