Here is a Mercury News article that isn't about Data Centers, but is of interest in regards to my research for Data Center location selection.
The article discusses all of the advantages that the silicon valley has over other tech hubs, but the statistics that stood out to me were this: "The valley ranked dead last in a comparison of 12 U.S. tech hubs on a matrix that gave equal weight to six ``critical issues'': unemployment rate, housing costs, traffic congestion costs, 8th-grade math achievement, electricity costs and state tax rates "
For a business deciding where to locate their infrastructure or build a data center these things are pretty important.
It was a very interesting article that is worth a read. The statistics were from an annual study by the Silicon Valley Leadership Group, a public policy advocacy organization.