My 81 year old father figured out years ago how to connect is Kindle to his local public library.
He literally checks out nearly any book, all FOR FREE and reads it on his kindle.
Maybe this is a US centric thing and Oyster was targeting international users. But local libraries have been offering this service of digitally checking out books (even current books) for free for nearly 10 years.
Don't get me wrong. I never like reading about businesses shutting down because that implies people will be losing their job. I just never understood this business to begin with, maybe someone could shed some light on what I'm missing