This conversation has become very interesting! I've been rotating between my drop-bars and uprights over the last week or so, considering the advantages associated with both. Last night I finally took out the Club Fuji and hammered out 22 miles in slightly over an hour... I hadn't really bothered sprinting much this season. I realized that I enjoy the opportunity to do that now and again, and it felt good to be going fast and working myself in such a way. Of course, it would not have been physically possible without the riding geometry offered by the drop bars.
I will be keeping examples of each, and using them as the mood strikes me.
-Gregory