How about those who built more successful (at least from a financial perspective) than 99.99999% of the world and have the power and resources to enact real change?
Haven't you heard, a recent article [1] gives 13 reasons there is a comeback, and it has some interesting nuggets:
- unemployment is 11.3% (not 50%) - high tech jobs growing over 100% yoy - ranked 46/150 for growth (opposed to 146 previously)
[1] http://www.businessinsider.com/detroit-comeback-2011-3
Rents, land, & costs of living are super low -- these are all significant advantages in any competitive business landscape.