<p>Personal guess. Price made for a small target market; advanced amateurs bought the cheaper FM-2 or FE-2, pros bought the F3. The FA was perceived as a "Super FE-2" for a lot more money; but the pro wanted a more rugged camera, while the advanced amateur wanted lower cost. And neither were interested in Program mode.</p>
<p>Also, it could possibly have been seen as lower quality, due to the use of a plastic top cover, where the other Nikon models at the time used brass (except the FG and EM). Problem with this is that the composition of the top cover is not obvious at a casual glance.</p>
<p>I have read somewhere that there were problems with the shutters on the early units disintegrating, which seems unlikely, since the shutter appears to be exactly the same as the one in the FE-2, and I have never heard of problems with the FE-2 shutters. I have an early FE-2, and it has always performed perfectly. Also have an FA, bought as a demo. model just after it was discontinued; never had a problem with it either.</p>
<p>In other words, who knows. Just the right product at the wrong time.</p>