Once they have tens of thousands of these operating, i'd imagine per unit cost will fall below $2000 within few years, even accounting for R&D. If it can deliv

Once they have tens of thousands of these operating, i'd imagine per unit cost will fall below $2000 within few years, even accounting for R&D. If it can deliver 10 packages per day (accounting for charge time), that's 3600 deliveries per year. Even if you have to replace it after 1 year, it's 50-60 cents per delivery. This will be perfect for suburbs nearby metropolitan regions.