At which point it's then common to tidy up things like the book metadata (eg correct the genre or add a series identifier). That in turn means the DRM-free EPUB version becomes the better version, so the native and network-free support of side-loading EPUB books on the Kobo etc is a useful thing.
Side-loading ePub on Kindle is now a thing btw with the personal document system. So you can literally just email files to your Kindle address.
I never had issues side-loading EPUBs to a Kindle with Calibre (the de-facto ebook management application standard), so I don't think that's a problem.
> Also, if you already have a huge Kindle library, makes little sense to change reader and lose it
Despite them being equivalent you still feel locked in.
Which is why I do it preemptively.
