An article in techcrunch.com (https://techcrunch.com/2016/12/28/amazon-patents-show-flying-warehouses-that-send-delivery-drones-to-your-door/) describes a patent filed by Amazon that describes a floating warehouse that can deliver product to customers via drones. By parking the warehouse close to large gatherings (such as sporting events) the patent claims quickly precise delivery. The patent also considers ensuring product freshness using temperature controlled drones. How much of a premium will customers have to pay to make the economics work for such deliveries ?   How important will it be to accurately forecast of demand at such locations to ensure profitability ? What other uses can you imagine for such a logistics approach ?