No, Decriminalization of Marijuana Is not Better than Legalization
I occasionally see libertarians who advocate the decriminalization of marijuana and other illegal substances as being preferable to outright legalization. The logic is one to which we might be sympathetic: decriminalized substances cannot be taxed, while legalized substances are more easily subjected to sales or excise taxes, as well as a panoply of other regulations. Therefore, according to this argument, decriminalization would represent a freer market than the tax-and-regulate environment of legalized sales.