The difference is, my bookshelf space at home is something I can choose - the internal space on my locked down device is not - so to carry on buying new books, I have to remove old content. This is saying I cannot get my content back (content I PAID for) without a CC on file.
The real world analogy does not work here - as I can carry on storing the books I want, and am fully aware that when I choose to remove a book, then I no longer have it - the expectation with a digital purchase, is that they hold my virtual bookself. If they don't then they need to make that clear, and provide ways for me to take on that responsibility.
No. Unlimited (non-abuse-level) downloads are part of the original understanding. There are services that give you a single copy of a file but they are rare.
I'm sure that maintaining your account is part of the original understanding too.
Just for the record, I think that anti-circumvention laws are absurd, and that EULAs aren't worth the RAM they consume. But I also think it's childish to buy a DRM-protected e-book from a company, terminate your account with that company, and then expect them to let you download another copy of the e-book for free.
The real world analogy does not work here - as I can carry on storing the books I want, and am fully aware that when I choose to remove a book, then I no longer have it - the expectation with a digital purchase, is that they hold my virtual bookself. If they don't then they need to make that clear, and provide ways for me to take on that responsibility.