This car has, seriously, DECADES of life left in it. It would be difficult to buy a higher quality car, period. I know that they seem expensive as a used car, but compared to new prices for cars in the class, saving a few tens-of-thousands is a great path to owning such a fantastic car.
The big longitudinal-engine Lexus sedans are simply amazing. Hey, the ES is terrific too, but man, the GS and LS are just unreal.