The US is such a strange country. You can buy guns freely, but I’ve just discovered that it’s illegal to sell alcohol over interstate boundaries. This is, as you might expect, acting as a damper on e-commerce in the wine business. It also conflicts with the Constitution’s endorsement of free trade. So the Supreme Court is going to consider the issue. Wine buffs await the outcome with bated breaths. So, presumeably, do small wineries.