A week or two ago a friend remarked that it was odd that I never had a chance to do a city book in my industry days.
That's mostly the case. In particular, the relevant editor at SJ Games outright mocked me for wanting to do one for Yrth or Hyboria (they had the Conan license in those days), partly because he didn't like city books, partly because Tredroy hadn't sold well.
But White Wolf(!!!!) DID give me a contract for a city book (for Dark Ages) and I walked on it. So that's on me.
Mocked you?! That's bad. I love city books. Especially the good ones, but even mediocre ones often have a few cool ideas.
I mean, cities are fun and always have tons of things going on, but it's hard to improvise all those tons of things at the drop of a hat, so a book to get you on your way is great. Cities can contain all the elements of great adventures. If not at the surface, then hidden.