* The story people believe most is the story they tell themselves. Many times, you are there to help them uncover that story, not to do objective analysis.
* Being from out of town makes you seem about 20% smarter. Everyone has something to say about the local solution; everyone's a little impressed when the out-of-town solution notices them.
* Most clients, most of the time, don't want an objectively elegant solution. They want what seems elegant to them.