Be that as it may, the point at issue was the Amazon spending of the average US household. I’m not sure what point relevant to the discussion you’re trying to make, other than reflexively arguing with any use of means in economic analysis. OK, sure, tell Matt Stoller.
The average Amazon spending of a US household, not the Amazon spending of the average US household. That second one gets weird.
I guess it's just always important/helpful to keep in mind that the average is almost certainly going to be misleading when the distribution is extremely skewed, as is the case for household income. It's usually a mistake to talk about averages in these cases, when the median is almost always going to be more meaningful.