WoW ADD

Last night, I went and got Namaqua to 84.  One level to Pandaria.  This morning I had some extra time because of a dentist appointment before work, so I logged in.  What did I do?  Yep, I had to do some cooking because of Pilgrim's Feast.  Of course, that meant traveling all over Azeroth.  Someday I'll get to 90.  What reward is waiting for me there?  Heroics, LFR and more quests.  Why is it people rush to the end again?