Attitudes about graduate school are changing.
100rsns.blogspot.com
100rsns.blogspot.com
Maybe if you're a theorist, or if you choose a fortunate field, but at Cornell the average experimental physics Ph.D. used to take 5 or 6 years. 7 was not at all rare, and it was not hard to find someone who had been around for 8. Meanwhile, most of the EE Ph.Ds I know took at least 5 years.
And then your postdocs start...
Mean salary for new hires in (AACSB accredited) finance is $193,300
Here is a view from the world of chemistry:
http://pipeline.corante.com/archives/2011/01/07/the_phd_prob...