> That would mean Amazon will have a whole lot of hubs all over the country in 1 hour radii.
Amazon is already building distribution centers all over the countries where they operate. They are massively upscaling their distribution network, and it's fair to expect that by 2015 they would have reached a point where they can guarantee 30 mins delivery in all major hubs.
Note that even currently, "prime" is not available for all items sold on Amazon anyway. I expect there will be similar restrictions as to what applies to "prime air".
Amazon is already building distribution centers all over the countries where they operate. They are massively upscaling their distribution network, and it's fair to expect that by 2015 they would have reached a point where they can guarantee 30 mins delivery in all major hubs.
Note that even currently, "prime" is not available for all items sold on Amazon anyway. I expect there will be similar restrictions as to what applies to "prime air".