I have an Alexa in every room of my house. But ordering things is too cumbersome by audio only. And even reordering is a no go. I need to see what I paid last time and compare a bit. I've found that a lot of items I might want to reorder can go way up in price.
I think the vin diagram of Alexa owners and those with lots more money than time, that don't care about a good deal has little overlap.