Followup to 'this ebook is a lemon'

There have been a few responses to my ‘This ebook is a lemon’ post earlier. Most of them either omit or misunderstand details from the post, which means that I probably wasn’t clear enough in the original. So here is a followup with a few clarifications based on issues raised. It’s not an analogy I was not comparing ebooks to cars. I was, like Akerlof in his paper, using cars to explain the ‘market of lemons’ dynamic.