MY EARLIER POST on Amazon Prime produced these comments from David Walser:

You wrote that Amazon’s flat fee shipping program has changed the way you shop. I suspect that Amazon wanted to change your shopping patterns, just not in the way yours have changed. They wanted you to buy more of the high margin stuff, more frequently. You seem to be buying more of the lower margin (although very nice) products, more frequently. I doubt that Amazon’s margin covers the shipping cost on a typical order of food bars. If the flat fee shipping program is too successful in changing shopping patterns to lower margin goods, Amazon (or their shipping partners) could lose a ton of money.

Uh oh. Because judging by this post, I’m not the only one responding this way.