The 360 is a better car. It's everything you want your NSX to be but the NSX is not.
No, I think after one seriously owns a NSX, it becomes apparent that "I want the NSX AND a Ferrari". There are some on these boards that could afford the latter but chose to keep the NSX if not have both instead because of its practicality and different sense of passion. That's my personal thought anyways. There are some who want to imitate the Ferrari sound or Ferrari back end... To each their own I guess. I can definitely understand the appeal of the exhaust sound tho.
I think IF one can procure a 02+ NSX for ~$45K or so, dollar for dollar, it would be a better car than the 360 at $80K or more. That price will not happen for a while though and the 360 may also be cheaper by then. Those considering a NSX for $75K or so should definitely just spring a bit more and get the 360!
Don't get my opinion twisted tho, the 360 is definitely still the better car, but in a whole different league in terms of money, as one is more practical than the other in terms of money where as the other is more of a Status piece for many owners to floss their money and they generally know nothing about cars.
Now that new 458 Italia (although it has some weird design cues), that is the ultimate Ferrari and car of all cars right now. Of course that new Mclaren is very competitive also.