Comment by martinald

I'm not sure. Amazon isn't usually hugely price competitive nor does it have stuff I can't find elsewhere.

What it does have is very high convenience (I'm signed in already, and I know the checkout process by muscle memory). To be fair it also has excellent customer support, but I'm not sure I would go out of my way just for that (I return a handful of purchases a year out of 100+).

These go away with 'agentic commerce', at least in theory, because the agent/MCP/API does this for the user.

The other advantage it has is excellent logistics, but that's more of a benefit for Amazon than the user IMO. Lots of small ecommerce sites can have 'excellent' logistics, because they are much smaller. The only unique thing Amazon has in the UK at least is same day delivery, but I believe they lose a fortune on that and really try and push you away from it. This may vary where you are but in general next day delivery works great in the UK from most sites (DPD/RM Tracked 24). Gets a bit hairy with 'economy' delivery from Evri or Yodel tho.