With some of the new venting options on hatches etc, dorades per say, may become of thing of the past. In that some of the newer options for venting boats are better, less sightly(opinion may vary on this one), in the way, and smaller in nature.
WHile they look salty, not sure I would "choose" to have them on a purpose built boat for me vs some of the other means of venting the cabin that work as well.
She drives me boat,
I drives me dinghy!