My heartfelt thanks to all those who took the time to respond to this post. I appreciate your comments, and they make me feel that there is a place for such post here on Basenotes. I am thinking of follow up threads in the same manner on rose and on sandalwood.
I actually like the "much maligned Azzaro Pure Vetiver" quite a bit. It's a very self-conscious and ironic twist on the notion of a "pure" vetiver. The name, of course, Azzaro Pure Vetiver, is, therefore, ironic. Perhaps I can explain it this way. It's like those Andy Warhol paintings, where Warhol takes an iconic image (a Campbell's soup can or a portrait of Marilyn Monroe) and then does a series of reproductions with various garish colors infusing the original. The garishness, the clearly tricked up quality of the reproduction has the effect of bringing the original into sharper focus with the derivative work, but at the same time giving the derivative work a new found respect because of the very ability to make us look at commonplace things anew. This is how I think of Azzaro Pure Vetiver. It a highly conceptualized vetiver fragrance. It's a garish, vibrantly synthetic green interpretation of the non existent pure vetiver note, and I think your observation that it's a vetiver version of Chrome is an astute one. For what it's worth, the perfumer behind Azzaro Pure Vetiver, Raphaël Haury, is one of my favorite perfumers and a most original perfumer at that. He is also the perfumer behind two very innovative fragrances--and favorite fragrances of mine--I have a very high regard for, Rodier Gourmandise (1999) and Parfums 06130 Yuzu Rouge (2002). He is definitely someone to keep an eye on.