Kevin, you just have to have both, that's all.
I don't agree that the Cobra is MORE fun to drive. Both have their own merits. Nothing beats the rush I get on accelerating a BB Cobra. That exhaust rumble is something else too. A little expensive on rear tires.
But driving the GT40 in the twisties...and that howling sound out back from a true 180 degree bundle of snakes and a tuned small block with Webers, unreal.