I’ve considered getting one since I got to play with it a few months ago. Not considering it any more. If they can do that remotely, what else can they do? I think they sell news articles. I’d had to archive an interesting article and find it’s been deleted (or worse changed) when I go back to read it. News articles on the web can be changed too, but if I find an interesting one I can save it to my local drive that nobody can delete or modify (at least no legally).
Kindle files can be backed up locally too... No sweat. It mounts like an external USB device on your computer.