darkwing_duck1
Vice Admiral
Digital copies can easily be backed off site or redownloaded if necessary. In some ways, digital is easier to lose but in others it can be far more permanent because there's nothing special about your copy. If your house burns down, then you've lost all your physical books but your B&N or Amazon account is still intact.
Further, there is no form of eBook DRM that requires a device to be connected to the internet 100% of the time. That simply isn't feasible with our current level of technology.
Doesn't have to be all the time. The delete order can sit, waiting until the next time you log in to update reader software or purchase a new book and ZAP, away goes whatever they want to take.
It's already happened once.