I think you hit the nail on the head. People are either open to it completely and maybe ask if they taste the same. (Then they are return customers - OK, I give them to friends and neighbors for free.) Or they look at me like I asked if they wanted to bite the head off a cute little duckling. (Sorrow, horror and disgust in one look).
I think they taste very similar but a little more robust, but I don't know how much of that is free range fresh and how much of that is duck because I haven't eaten any laid the same day (or same week for that matter) chicken eggs by themselves. (When I was at my sister's last fall, she made a dish that used fresh chicken eggs in - probably within a week of laying - and it was very good, but there was enough "dish" that I couldn't really evaluate the eggs themselves.) When I eat chicken eggs out (not on purpose, they come with the pancakes and bacon and sausage), they taste watered down to me.
I think if we had more rice patties in the USA, we would all be eating runner eggs and would think chicken eggs were weird