Here's one of the differences between being a surgeon and a designer: surgeons are required to be meticulous and have an OCD level to details. If they are, in most probability, people live and have healthy outcomes. Designers are required to be meticulous and have an OCD level to details also. If we are, nobody except another OCD designer notices. The upside is that bad word-spacing doesn't kill people.
I can spend hours kerning the crap out of a headline. Does anyone apart from me care, or notice? Probably not. We zoom in to a gazillion percent to make sure a point is absolutely precise, obsess over the difference between Adobe Bodoni and Monotype Bodoni. But of we didn't, we'd be slobs and hack designers, and it wouldn't be as much fun.
Herb Lester Associates produces a wonderful collection of guides to different cities. Let's face it, most city guides look like the Map to the Stars Homes. The Herb Lester guides are not only pertinent to travelers who prefer something more interesting than mobbed, but are detailed to death. Every tiny piece of type has been considered. The illustrations are wonderful and change from map to map. I know the designers were working on a the files at 400%, and it shows. Even the packing tape on the envelope is a work of art (which I plan to steal).
In this instance, I noticed. Every thoughtful and beautifully crafted detail adds to the overall extraordinariness of the guides. The lesson here, go ahead and fine tune the shit out of the details. If only one person in the world sees it, you've succeeded.