You’re assuming that the product you ordered is at that warehouse. It probably isn’t. They can’t store all products at all locations. Even if that distribution center ends up being the shipment origination site, the product still probably had to move within the Amazon network. Some of those things will move within the Amazon network, some with external (trackable) carriers (UPS/FedEx). And some things has restrictions on the method of transport. If there is a lithium battery anywhere in the device, it travels by ground.
Also — if you’re in the US, today is a holiday and nothing will move. So today and yesterday had/has limited movement between distribution centers. And as we get closer to Christmas, the entire network will start to approach saturation.
There are many reasons why things don’t always ship as fast as you’d like them to.
Speaking of assumptions lets review yours for a moment.
1) I am not assuming the products are from different warehouses. I know this for a fact. Look at my other post and i stated one item is being shipped from a warehouse ~120 KM away. I will guess the rest is from the local warehouse? Once amazon updates the shipping details (probably friday AM) it will show me where it came from..
2) I'm in Canada and it is not a holiday here so it is unclear why "today and yesterday had/has limited movement between distribution centers."
3) Amazon Canada rarely uses other carriers anymore. I cant tell you when the last time anyone i know received something that didnt use their own in-house shipping service so you cant really blame "UPS/Fedex"
A few months ago I ordered a dongle from Amazon to attach a floppy drive to a modern computer via USB. For some reason this weird, niche little thing was eligible for Amazon Essentials same day delivery. Apparently every Amazon warehouse has a dusty box of these things in the corner that they're still trying to unload?
Also — if you’re in the US, today is a holiday and nothing will move. So today and yesterday had/has limited movement between distribution centers. And as we get closer to Christmas, the entire network will start to approach saturation.
There are many reasons why things don’t always ship as fast as you’d like them to.