It's not renting really. If I rent a physical book (or house, etc), I have exclusive access to it. Nobody else can possess it. It's for this privilege that I'm paying. Obviously, this is not true of ebooks because 'X' persons can "rent" at the same time.
You're just licensing them. You're just paying for a license which can be revoked at Amazon's whim.
It's not renting really. If I rent a physical book (or house, etc), I have exclusive access to it. Nobody else can possess it. It's for this privilege that I'm paying. Obviously, this is not true of ebooks because 'X' persons can "rent" at the same time.
You're just licensing them. You're just paying for a license which can be revoked at Amazon's whim.