I'm not sure the price argument is correct. Doesn't legal weed cost more than in states that have legalized it? The argument for legal drugs that speaks to me is that adults should be able to decide how they use their body.The argument in legalizing drugs is that it will end the criminal importation because it will drive prices down. I would assume the same argument would be used for legalizing prostitution. Lowering the price certainly doesn't help the woman/man who is prostituting herself/himself.