Admit it. You had no idea that the federal courts are hearing cases under the Twenty First Amendment to the U.S. Constitution, the amendment that repealed prohibition. I wasn't aware of this either, but the Second Circuit just issued a ruling that analyzes the Twenty First in the context of out-of-state wine sales in New York. Kind of interesting, to be sure, but even more interesting is the concurring opinion.
The case is Arnold's Wines v. Boyle, decided on July 1. The case addresses two competing constitutional amendments. The Twenty First says that you cannot bring intoxicating liquors into a state in violation of the laws of that state. The Commerce Clause, however, says that Congress shall regulate interstate commerce. So the Twenty First -- which grants states authority to regulate interstate wine commerce -- is an exception to the Commerce Clause, which broadly grants all other interstate commerce authority to Congress. The Court of Appeals (Wesley, Calabresi and Walker) holds that New York can legally enforce a statutory scheme which prohibits out-of-state wine retailers from selling directly to New York consumers; the liquor must first pass through an entity licensed by the state.