I didn't meant that it is interesting for revealing trends in marketing necessarily, but for revealing aspects of the current state of our culture.
The "urban" trend.. that's been big since I was in junior high school. So it's a trend over 10 years old. The stability suggests more to it than just a marketing trick. Probably is that the 'burbs are boring, or that the grass is always greener.
The culture would seem to be just fine -- at least from what I can tell. Most people look out and say, "How horrible, I'm not like that," not realizing they are part of the larger cultural picture as well.