I have been asked many times, why level another lock.
My answer is extremely simple. I enjoy playing them. I am comfortable playing them... doing things I already know how to do it does make the game fun for me.
Never do I get bored playing a lock. What I need to do however is expand away from only playing Demo. All 3 of my Locks are Undead Demo Locks. I know Destro does better damage And Affliction is great for PvP, but you know what, I've never been one to follow the trend and do something because everyone else was doing it. Wait that's not true... there was a point in my life when I listened to The Backstreet Boys because everyone else around me was listening to it. kidding, I enjoyed them... at one point. Maybe :-P
Anywhos, I started off playing Deadskully as Destro through BC and switched to Affliction in LK and then finally Demo in Cata and never changed it since. The main reason why I haven't changed it... I cant get used to playing the other specs. I tried to do Destro but wouldn't give myself time to get used to it and understanding the spells all over again etc. After Babyskully (Hyjal) hit 90, I told myself I was gonna stay Demo until I get gear for her... but of course never got around to doing anything with Destro again. I probably will attempt to do it again, but for now I'm gonna stick with what I know and what I'm used to. If I ever try to dabble in PvP again I want to try to do Affliction. But that is something I will not hold my breath for, :-)
Not quite sure what I will do with Babyskully (Alexstrasza), but She is Demo, shocker!, and her gear is rather sad. Of course cuz she is a fresh 90.
You know what, I don't feel too bad... I knew someone with 9 Hunters.