Well, I just took a look, and "A Summer Wedding" is #240 on the short-story eBook best-seller list at Books-A-Million. Okay, so it is out of only 920 or so items in that category, but that puts it in the top 30%.
Of course, I realize that if the category is specific enough, I could be at the top. For instance, I'm sure that I am #1 on the "short-story eBook about youthful love in early 1970s America best-seller list".
But, the bottom line is, someone must have actually purchased it at Books-A-Million...astonishing.