Breakfast Topic: Your favorite (WoW) things

Though we may all be playing World of Warcraft together, we're not all necessarily playing for the same reasons. Some of us are into PvP, others are only interested in raids, some might love the game's lore, some might only want to collect everything the game offers, and some are just here for the in-game community. Whatever your reasons for playing, whether you're brand new or you've been here since the beginning, they're probably different from your nearest WoW neighbor.

Today, let's talk about the reasons we all play. What's your favorite WoW thing, the part of the game that keeps you logging on day after day (and year after year)?