I don't think I'd call a 1500kg 4WD hot hatch with 300-odd bhp (much less 400bhp with a £120 remap!) dreadfully dull. Hell, it still has the option of a manual 'box so that's one area where the R35 will never be able to compete. Plus new car, plus full warranty, plus decent interior, plus five proper seats, plus more boot space, plus it's a completely different image (for better or worse) etc.
Now don't get me wrong, I'd take a GT-R over a Golf R too, but I can see plenty of reasons why many people wouldn't.