I'm wondering if Nintendo of America (NOA) has had poor memories as to the exact release date when the NES and Super Mario Bros. was released, as if such milestones don't matter to them anymore in the face of increasing losses caused by the failure of the WiiU and 3DS systems? What I do understand is that the system had had a limited launch, being available only in New York when initially introduced here around October or November 1985, and that the nationwide release wasn't until September 1986, nearly one year after its New York test launch.
In researching back issues of one of my local newspapers, The Oregonian, the NES didn't go on sale in Portland, OR until June 1986.
~Ben