I bought a gray (see my avatar) - grey market 300 f4 lens in 2007. In 2010, I had the autofocus motor replaced at the Nikon NY Service Center. It was not covered by any warranty, but they repaired it non the less. I am still dollars ahead. I wanted the gray colored model because of the heat in Florida. I have never seen that color marketed in the US. I use this lens about 90% of my shooting, it is extraordinary and very durable.