How well this formula will work is still up in the air. Images will count as content, so you may see novels with a few extra illustrations that weren't really necessary. The move may also inadvertently punish authors of industry guides, textbooks and other material that you aren't likely to read cover-to-cover. More importantly, there's a concern that writers will compromise stories by including lots of cliffhangers, epilogues and anything else that might keep you reading for a little bit longer. The impact may be limited given that subscriptions are only one part of Amazon's strategy, but it won't be surprising if the per-page revenue shapes certain authors in the same way that serials influenced the likes of Charles Dickens.