The price of a gram of cocaine in the US soared 89 percent -- from 96.61 dollars to 182.73 dollars -- from January 2007 to September 2008, said the Drug Enforcement Administration (DEA) in a report.
…cocaine purity dropped during the same period from 67 percent to 46 percent
To increase profitability suppliers cut potency by mixing it with a wide variety of other substances -- an often dangerous practice.
Nonetheless key to remember: Cocaine kills, there is no safe amount of cocaine, you never know what you are getting/buying.
So now you have to spend more to die high; or maybe not quite high, if the amount is enough to kill you (or the adulterants a poisonous enough), but not quality cocaine enough to get a buzz on for you.