I listen to talk radio and over the last week I've been hearing commercials for a book written by a medic/doctor who served in Vietnam. I started to wonder about it so went to have a look. Chicken Smith. It's an ebook only and self-published.
How much does a commercial cost? The book's ranked around 61,000 which I suppose is good if you're thinking about the millions of books on Amazon so has the advertising had an impact in sales? Priced at $9.99, that may be a little steep. There's no paper edition. That could be a mistake but it's an interesting gambit.