A Wilderlands thread that I haven't posted in? How did this happen?
I love the boxed set with all my heart. It's so inspiring that I have a hard time reading it for any length of time, because my mind wanders off on tangents of the hundreds of campaigns I could run in it. There is enough material in this product for a lifetime of campaigns.
You can start on any map and find something to fire your imagination. The players can go anywhere and they will stumble onto adventures. The random encounter tables make my rat bastard heart sing.
The City State book, while good, is really just a city. The Player's Guide is useful, but not essential. The boxed set though, is a masterpiece. I'm seriously considering buying a second copy to leave in the shrinkwrap, because I never want to be without my Wilderlands.