It really is surprising to hear that that isn't a regular question. Even as a mostly hobby photographer, when I'm out and about with just my "nifty fifty" because nothing else fits the hiking backpack, I often find myself longing for either the macro or the wide-angle lens - and often both. :)
It obviously speaks for the quality of your work if that question isn't raised more often. Seeing those portraits - yeah, I wouldn't have thought that, but they really work well!