whenever i buy weed (i dont buy weed this is just hypothetical) people either sell bud which goes $10 a gram or shake which is $5 a gram(no one ususally sells shake). So it evens out cuz sometimes you buy some bud(hypothetically) and its the fuckin shit and other times its just fuckin shit. More often then not tho its good and even bad stuff is good if u know what im sayin.