I haven’t seen Guild Wars on sale for quite a long time. Today, however, it is on sale on Steam. All versions are 50 % off for the next 48 hours: Prophecies, Factions, Nightfall, the expansion Eye of the North and the trilogy (containing the campaigns Prophecies, Factions and Nightfall).
A little information in case you don’t know much about Guild Wars 1: The campaigns are standalone, meaning you can buy either of those and play the game. Each campaign takes place in a different part of the world (called Tyria). The expansion “Eye of the North” requires any of the three campaigns. So, you do not have to buy all three campaigns. You can just buy one or two if you want. However, if you do want to get two, you may as well just buy the trilogy as the price is the same. ;)
If you are also a Guild Wars 2 player, link your Guild Wars 1 account to your Guild Wars 2 account or you will not receive those Hall of Monuments points. I wrote about it before and linked to several guides (I can recommend the one done by Dragon Season! :p) on how to get the points in Guild Wars 1 that are required for the various rewards, namely armor skins, ranger pets and miniatures. You can see the list of rewards with the demo mode of the Hall of Monuments rewards calculator showing 3 points already – read on to know why: What you do need in order to get those Hall of Monuments points is the expansion “Eye of the North” + one of the campaigns. However, you will automatically receive 1 point for each of the three campaigns. So, if you buy all three campaigns and the expansion (and play a character to level 10, so they can enter the Hall of Monuments), you will receive your first three Hall of Monuments points.
Is this game worth buying, especially since it’s several years old already? Yes, yes it is! I have had a lot of fun with it, I enjoyed the storylines, I loved the world and the way it looks. One caveat: You cannot jump in this game. ;)
And if you are worried about not finding any players to play with: 1) There are no dedicated servers, but districts that you can freely choose. 2) Guild Wars has NPCs that you can take with you. The game is not an open world game, but you enter instanced areas where a premade group of varying size (4 to 8) can enter together. If you can’t find or don’t want to find others to group with, you can just take NPCs. The Nightfall campaign also added heroes which are customizable NPCs. You can choose builds and armor stats for your heroes which makes playing even easier. But even with the NPCs, I did not have any trouble playing the campaigns and I really enjoyed the game.