So I bought a hard copy of Vornheim: Complete City Kit as recommended by the author of said tome Zak S. of D&D With Porn Stars fame.
Initially, I purchased it because "Hey, I've been reading dude's blog for a while now. I like his ideas and wish to support him in his endeavors."
After spending some time with the product, it's pretty damn cool. As advertised, it's less of a "Here is a city," and more of a "Here are some good tools and techniques for running a game in a city,".
Though, it is designed to let you create and run city adventures in a medieval fantasy world on the fly, I'll be using it in my upcoming Mass Effect game with minimal modification.
I've been so pleased with it that I plan on transporting Vornheim and the surrounding environs wholesale into another setting I've been cooking up that will incorporate several other ideas lovingly stolen from TotGaD.
Maybe on payday I'll buy a hard copy of his book, too.
I might pick up a PDF copy of Vornheim as well. Many of the charts and tables are things that I'd like to have printed out so that I could paste them to the back of a GM screen, or stick in a binder.
At any rate, if you've been thinking about getting your own copy of Vornheim, well, why wouldn't you?