Since squarespace is often used by small local businesses, this may be really useful. They may use their own courier to deliver locally –fast and affordable– but may have to ship –more expensive and not as fast– for destinations further away. So I would think people are willing to pay for this feature and I personally don't care if it's only for the higher-tiered plans. However, I consider it a problem that this feature is only for businesses in America, France or the UK, even if they are on the most expensive plan, i.e. paying for a feature they are not receiving.