[tyfon]

What happens if you do this via Alexa, does it just auto-order whatever it finds to whatever price it wants or does one have some control over it?

I don't have any of these assistants in my house for obvious reasons but this seems like the perfect way to scam someone.

[taborj]

I think even more so when it's something you've bought before. "Alexa, buy more XYZ". I don't use assistants either (for I suspect the same reasons as you), but I assume Alexa would simply repurchase the same item you bought last time, regardless of price. In OP's case, that'd be a 10x markup.