Case in point: Hogs, the Hogger-alike pet that we'll be able to collect for WoW's 10th anniversary. The description alone is enough to get me: "Tenacious and terrible, the mighty Hogs slaughters weaker enemies without hesitation." Doesn't he sound adorable? Or if not adorable, at least tiny and fierce which is something my gnome monk can certainly relate to. And since he's presumably going to be handed out to anyone who logs on during the anniversary, this will be a lot easier to collect than some of my other must-haves, like Deathcharger's Reins.
But tell me, readers -- what are your must-have WoW collectables? Is there anything on your list you've been trying to get but just can't?