I know what you mean - if my 4 year old, 53,000 mile Gen 3 is half as good as my last Gen 1 was (kept it 9 years, did 163k, still in use with 180k on clock apparently) it's nowhere near halfway through it's useful life...
but... an awful lot of goodies on new model, including some very appealing safety and convenience features - now, if only it had 4WD, plugin, AND spare wheel with 15" wheels (and, oh yes, 360° camera like some Lexus, Nissan Leaf etc.)
Not sure the VED is a major factor in the overall scheme of things though