That's why it's a good idea to get as many as you can ... and, as much as is possible, duplicate the books you treasure most on at least one other reader. So in case one gets lost, you'll still have a backup.
At least that's the justification I'm giving my husband, for why I have 3, going on 4, going on 20, ebook readers now!
Seriously, yes, my sympathies - hope you find it!