Originally Posted by Ravenswd
There's nothing after the "because" because I don't know what should go there. Nobody seems to have the answer to this. No-one even addresses the question.
The available ereading devices weren't being marketed in a way that people could find them or even know what they were. I'd look at the history of the devices and their marketing patterns and the resulting sales. There's a reason why Kindles became the the Kleenex of ereaders - few people knew ereading was even a "thing" until Amazon branded it. The first Kindle launched in late 2007. Sony instroduced eink the year before, but I never noticed and I imagine most other people missed it as well. Amazon already had a huge base of customers to market to directly, many of whom were already buying books.