1337Delta764 wrote:Note that even if the item is available locally, there may be a delay in processing the order if the No Rush option is selected, since Amazon gives priority to processing orders that have faster shipping speeds selected.
Also, it seems that Amazon likes to hold a lot of the local inventory for Same-day or One-day deliveries. A lot of my Two-day orders for example ship out of the Inland Empire of Southern California (especially Eastvale or Moreno Valley). I highly doubt that the majority of my orders aren't stocked locally.
The other thing that "no rush" gives Amazon the ability to do is to slot packages in to hit their minimum daily package requirements with last mile providers. (e.g. They contract with last mile providers to deliver at least say 2,000 packages in this market per day. If they only have 1,900 scheduled that day, they find 100 packages to upgrade to deliver that day, since it doesn't cost them more.)
I've seen "no rush" orders that were placed around midnight upgraded to deliver the same day. I checked with a friend of a friend who works in Amazon's logistics department, who confirmed that its the minimum daily package requirement that drives this upgrade, since Amazon isn't going to pay more to deliver the package.