For Me:
* Far easier to "hoon" without re-learning whole rear engine thing. (Every review vs 911 it comes out on top for just being so easy to drive)
* Proven platform which I can mod to virtually any level for not insane levels of money.
* Far newer car for the same money.
I've been infatuated with the GTR since it's debut, it's always that car that punches weigh above it's weight for the $$ spent.