Originally Posted by DiapDealer
If you have no actual kindle device and only rely on the Kindle for * apps, then there are certainly scenarios where "can be stripped of DRM anytime" is just not true. If Amazon and its servers vanish today (or you simply become locked out of your account), then those DRMed backups of K4PC files can be rendered useless if the original computer's hard drive (or the computer itself) takes a puke and you have to get a new one.
I was addressing the DRM technology, and what would happen if you lost your access to Amazon before stripping.
I mean, obviously, even if you back up and strip immediately, if your hard drive fries, and your backup is corrupted....or you can die before telling your heirs where you buried your Calibre library....