A collector's book feature showing all the legendary (unique) items you've found along your travels. Once you find it, it makes an entry in your record to show you've picked up that item - and includes the stats for that item. If you havent found the item yet, its just shown as a blank page, or perhaps is greyed out with a very rough outline of the item, just as a teaser.
Sort of gives an extra objective for the crazy obsessive collectors, who want to get hold of every item in the game, as well as a handy reference book for all the legendary items. I'd certainly like to be able to look and say I've found xx% of all the legendaries. It would also make it a little more rewarding to find the legendary items that you maybe arent going to use as you'd get an extra entry in your book.
Surely it wouldnt take up that much extra in terms of server space, all you need is to allocate each legendary item a 'page number' and just let the player get access to that page once theyve found that item.
Maybe a feature like this is in already but has passed me by?
What do you think... would this add a little bit to the game?