A new study from a non-profit group of business and community leaders in Silicon Valley raises the possibility that quality-of-life issues may drive tech business out of the area. High costs, especially in housing, and long commutes in terrible traffic sum up the problems portrayed in the study. The inability of local governments to deal with the demand for upgraded infrastructure and housing may, according to some, be traced to the fact that Web businesses do not pay local taxes. City tax revenues in Mountain View, for instance, have fallen even as e-commerce has grown. The report accepts that the trend for tech businesses to locate in more attractive areas, including Germany’s Silicon Saxony, Singapore’s Intelligent Island and Massachusetts’ Route 128, may be accelerating.