Duplo, you are correct. I initially wrote two comparisons, one converting focal lengths and the other not. Somehow I got a bit mixed up editing the post down to something more reasonable in length. At least in this comparison there are fast Nikon lenses to match the Limiteds, otherwise Nikon fares even poorer I think. And these changes do not significantly affect the prices or the overall conclusion.
Originally Posted by Duplo 
The 16-45 is with all due respect an ordinary standard zoom, comparing it to what is probably the best standard zoom out there regardless of brand is hardly fair, the Nikkor 24-70G is a fully weathersealed f2.8 pro lens. A comparable lens is a lens like the 24-120VR or 24-85AFS.
Well, there are no really comparable lenses. Though the DA16-45 is bottom of the totem pole in terms of its class, it is top of the pile in terms of quality. I disagree that it is "an ordinary standard zoom" even if it is marketed and positioned that way. It is fully professional in terms of IQ. In order to get anything similar from Nikon does cost an awful lot more, especially when SR is factored in.
Basically, that's the point.