I've seen all of this - albeit on a MUCH smaller scale - growing up in MA. Every year there are more and more abandoned factories. Really sad. If any of us ever needed proof we are in steep decline, this is it.
On this site here you can check out every aspect of industry, and life in general, abandoned & decaying to nothingness - a shadow of what once was. Go on the school section and check out Cass Technical High School - I've never seen a school so big in my life!! What a waste. 8 FLOORS!! Elevators! You have to see it to believe it. Then check out the churches - some real nice ones. One was saved, which was a shocker.
The wife & I spent hours on this, and we only toured Cass High and a few churches ...
What a mess. I fairly certain all of this will be coming to a city near you. I'm already seeing it in action in Worcester ... http://detroiturbex.com/content/index.html