Here's a hypothetical question: If there's no 2014 FJ Cruiser, meaning that If for some stupid reason they decide to discontinue the FJ, would prices go down?
Specialty cars that are discontinued and then not replaced tend to maintain their value very well. For example, ever shopped for an Acura NSX or a '94+ Toyota Supra? The prices on them are nuts, because they haven't been overshadowed by newer cars.
That's not to say that the FJ will hold its value like a NSX or a Supra, but for as well as the FJ's already hold their value, I imagine the impact to discontinuing them would have a positive impact on their value in the used market.
Surely there are crappy cars that never should have been made (Pontiac Aztec?), but I wouldn't lump the FJ in with the Aztec or others like it.