Originally Posted by koland
The paperwhites and all the new Kindle Fires come with the 'large archive fix' already in place - they cut off access to prevent blowing up the devices (according to Amazon support, at around 5K or so items). If you are over the limit, they only show the latest titles (rather than oldest, as all previous versions did).
It's pretty useless, anyway, unless you know the exact title or author you are looking for - no device since the original Kindle has sorted the archive by date.
Without decent cataloging capability no device or cloud will function well with hundreds of items, much less thousands. That is why it astonishes me that some people insist on installing a huge library on a device which can not adequately catalog them. Try going to a library without card files and where all the books are randomly placed on shelves. You might be there a while looking for that one book you need. At least the KPW, unlike the Fires, has Collections. But you really need more cataloging than simple one-tier collections when you have hundreds or more of books loaded.