I'm also referring to trusting amazon specifically. They're a competitor, and not one known for playing nice. I've heard that retailers are hesitant to even use AWS (I don't have a source for that and would love to hear otherwise if that's the case?) - because of competitive concerns- so will people want to work with amazon for something so core to their business?

> I've heard that retailers are hesitant to even use AWS (I don't have a source for that and would love to hear otherwise if that's the case?) -

https://www.wsj.com/articles/wal-mart-to-vendors-get-off-ama...

Oh wow so that's worse than I had heard - not just avoid AWS but also force suppliers off of AWS.

Yeah, I wonder how retailers are going to feel about amazon having a direct pipeline of purchase data at all their competitors fed directly to a division of the company that I'm sure they'll claim is sealed off from the rest of operations. Even if amazon is playing totally fairly here, I don't see why it makes sense for people to trust them with so much at risk

But Amazon is a completely different beast - they've already shown they want to horizontally expand into the grocery market everywhere, so stores using their technology is just a stopgap on the journey to Amazon cutting into the profits of said stores via competition. When that happens, they better hope removing Amazon's system is as easy as it is to integrate it.