To understand why many other ebook publishers / vendors adhere to this outdated royalty payment schedule you have to factor in the truth in the saying, «Money never sleeps.» (goodereader.com)
The siren call of Kindle and other ebook publishers lures many into a rush to publish. (indiepublishingsuccess.com)
Aggregators like Draft2Digital or Smashwords can help you with all - other eBook publishers like Apple, Kobo or Barnes and Noble but not with Amazon or CreateSpace. (publishwithprasen.com)