The problem is this: The 350Z isn't in the same class as the NSX...but today we have nothing else to really compare the NSX to. There are no more supercars from Japan.. They've all been replaced by things like the Evo, Sti, 350Z, Rx-8, etc.
It's only natural to compare cars that are hot right now...the 350Z is hot, but lets face it, it is no 300Z TT...but then again, it doesn't cost $40k either.