The thing about the buying on Amazon vs. anywhere else, even if its more expensive: In the vast, vast majority of cases that I've price shopped elsewhere, Amaz

The thing about the buying on Amazon vs. anywhere else, even if its more expensive: In the vast, vast majority of cases that I've price shopped elsewhere, Amazon is almost always the cheaper option. And if they're more expensive, it's generally by only a dollar or two (also depending on how their pricing algorithm is working that day - I've had times where I've checked in the morning, then come back to buy in the afternoon and there's a whole $5 difference). This leads to the phenomenon of, if you shop on Amazon a fair bit (which Prime's obviously do, but I bet a lot of other "non-Primes" do too), you will probably reach a point where you just quit spending the extra time to price-shop and just buy the thing you're looking for. You end up saving even more that way because you now have more time for other things. All that to say - I think just identifying Prime members with this behavior is a little narrow in focus. My guess is that there are a whole lot of other customers who fit this pattern, but don't have Prime, and I bet there would be some value in pursuing that analysis deeper!