The Outrageous Cost of a Gene Test

Here's an opinion piece in the New York Times by David Agus, a medical oncologist and a professor of medicine and engineering at USC.  It is titled "The Outrageous Cost of a Gene Test," and it is about the Myriad test for the BRCA1 and 2 gene mutations. 
http://www.nytimes.com/2013/05/21/opinion/the-outrageous-cost-of-a-gene-test.html?_r=0
He says the tests could be done in the $100 range, instead of the $4,000+ Myriad Genetics charges.