I have no interest in buying e-books but, if I did, I would probably continue to use Amazon since I can just order the print copy when there's no e-book version

I have no interest in buying e-books but, if I did, I would probably continue to use Amazon since I can just order the print copy when there's no e-book version available and have the option of using them on a Kindle. (again, if I wanted e-books which I really do not)