The people who smoke dope aren’t necessarily dopes. I hate to poop on New Jersey’s pot party, but I have a question: Why would anyone buy legal marijuana when the state is planning to place a $42-an-ounce tax on the stuff? You probably heard that Jersey is about to legalize marijuana so that adults can buy it for recreational use. It’ll be just like booze, which anyone over 21 in the state can purchase. Only difference is that New Jersey doesn’t tax liquor as onerously as it will pot.