The complaint about DRM is that a company may suddenly stop supporting your license for the book. You don't own anything and are dependent on their goodwill.

The complaint about DRM is that a company may suddenly stop supporting your license for the book. You don't own anything and are dependent on their goodwill. And to be clear, there are numerous ways short of Amazon going under that could result in a reader/listener no longer having access to their content. Say your phone provider stops allowing the Audible app on your phone, you can no longer use your content. To many, once a book is purchased, they should be able to enjoy it the way they want and DRM either prevents that or threatens to prevent that for your entire library. You can expect that as a user you'll have little to no recourse should that happen. There is also the discontent that DRM isn't necessarily being used to ensure payment, but being used to gouge the buyers. Less so than it was, but a lot of ebooks were costing more than their physical counterparts because there was no used/library channel for competition.