on Just Publishing Advice:

For those who read this blog, you will know that I believe Amazon is the first choice platform and retailer for self-published authors, as it offers the best chance of gaining sales.

On top of this, Amazon KDP Select can give new authors especially, a launching pad via free ebooks and now, Kindle Unlimited, but at the cost of granting Amazon exclusivity.

With that said, though, I don’t believe that leaving ebooks exclusive with Amazon and Select forever is a good idea. One reason is that it stymies all chances of finding additional markets and readers, as not all of the reading world uses Kindle or Amazon.

My other reason is only a hunch, but after numerous entries and exits with KDP Select exclusivity, I believe that the benefit reduces after two or three enrolment periods.

I am not sure why, but I could well imagine that Amazon’s marketing algorithms give more favour to newer titles, as well as newly enrolled exclusive titles.