Your paying to be the owner of a very small production run with a very highly sort after brand, Nismo, i dont think it has anything to do with bragging rights. Take a look at Nismo s or z tune Skylines compared to std.
I would also say, if this is the real deal and i think we can safely say, non of us are entirely sure of the spec of the jdm model, it would cost you a hell of a lot more to buy an original Nismo V3 bodykit, fit and paint to a 22k, 2007 350z , let alone add the Nismo suspension goodies, wheels etc (if this is genuine full fat version), so in essence its a bit of a steal, liking what it looks like or how much difference there is to a std 350z is irrelevant because of one word......
NISMO
P.s I wouldnt buy it but that doesnt distract from seeing its value imho