It is not clear to me whether the people who run the eHarlequin site for romance related ebooks are incompetant or just contemptuous of their customers. In the absence of other evidence I tend to lean towards the former because of that famour retelling of Occams razor "never ascribe to malice what can be accounted for by stupidity".
Either way I find it interesting that they manage to have the same set of electrons available at not just two but three different prices as the image below shows (if the link doesn't work go to the main page and search for "poison study" to see for yourself).