NCsoft has just released the Guild Wars Bonus Mission Pack, an inexpensive add-on which gives players a chance to experience the most pivotal battles in the game's lore (and earn some nice swag along the way).
The pack retails for $10, and is currently available either from NCsoft's PlayNC website, via direct in-game purchase or from various online retailers.
Surprisingly, each of the four included missions is built for solo play -- in stark contrast to the general idea behind the MMO genre -- but being able to participate in battles that you've only heard about (or seen the cataclysmic aftermath of) so far, is still wicked cool. Plus, fancy, new gear is always a bonus.