For me, a downturn doesn't necessarily mean as much as it does to some of the more established authors. Although, I am a full-time author these days, I, at least, have a wonderful wife who continues to keep in the manner to which I have become accustomed, regardless of my sales.
Nevertheless, this downturn in sales is disturbing, for all of us struggling authors in this community. It got me to thinking about what might be behind the drop. I'm no expert and I've only been in this community for a couple of years, but there are a couple of things that struck me instantly.