Good point.
So do you think that we will start seeing more and more, high quality F4 or F5.6 lenses?
Looks like my prediction of more higher-end consumer lenses of f/4 and f/5.6 has come true; as ISO performance god better and better, the ,arket was made ripe for lenses like the 200-500mm f/5.6 from Nikon, as well as Tamron and Sigma's long, super-tele zooms with slowish max apertures. And it only took like, what? Six years was it?