It is useful to remind people that it takes nearly a billion dollars to bring a drug to market, so if the public discovers a new use of equivalent efficacy for a natural treatment or a drug already in the public domain for less than a billion dollars it is a benefit.
That's a very good point. Economic issues matter. What I would like to know more about is whether there has ever been, or ever will be, an "alternative" therapy of comparable safety and effectiveness that will come to market at less research expenditure than a "big pharma/mainstream medicine" therapy for the same condition. Human subject safety and effectiveness studies are inherently expensive, and until they are done, it is not clear that two therapies from two different paradigms of treatment are comparable at all.
Thanks for the other link about antidepressant drugs. The best considered view of the authors of the standard textbook on recurrent and bipolar depression
http://www.amazon.com/Manic-Depressive-Illness-Disorders-Rec...
is that mood stabilizers (lithium, depakote, carbamazepine) are better first-line drugs for depression with cyclic course than the SSRI drugs mentioned in the link you shared, and that talk therapy, especially if based on cognitive principles, is surely as effective as SSRIs and often needed in conjunction with any drug treatment for depression. The new SSRI drugs for depression indeed do not make mood disorder symptoms go away all by themselves, in the majority of cases.