Took somewhat of a hiatus when Fallout 3 came out.  Beat Fallout 3, uninstalled it, did some flight-simming for a while, re-installed FO3, beat it again, exploring everything and then just now got back to WoW.  Now that you can change faction I changed my Human Lock to an Undead Lock with my Horde guild and enjoy it much better now.  
I haven't played it religiously like I did for the first six months in years, though.  It does get rather repetetive when you get to 80, and dailies are like stabbing my eyes out.  It's basically a time waster now, like Solitaire.
Still addicted to flight sims, though.