Yes, I've seen Volker's city attempts with perlin functions... Ridiculously too complicated for such a small brained one as me!
I'm clearly not the first one to have made displacement buildings, it's actually quite common.
It's the way you incorporate them into a scene that will make the most impact. These would look really, really ugly in daylight and up close.
In this dimly lit setting though, I fancy I can even see streets and traffic and such!
