I started up a DK and got her to 59 (that first quest area takes for fucking ever.. sheesh) and went to TBC and man, I just hate that area. Haven't gone back to the character in 6 weeks or so. It also seems pretty damn complex with balancing the runes.
I was a warrior at launch so I could try one of those out again but I hate not healing well after getting accustomed to the druid and the healing from hunter abilities and FD. I have a Warlock I got to 77 back in the day and could push him through to 100 but I just have no motivation. The game is such a slog to me to do everything solo, ya know? None of my real friends have played for I don't even know how long so I'm stuck on some random server that is mostly dead (Lothar) with a random guild that is mostly dead but there's no way in hell I'll pay real money to move my characters. 0% chance.
Oh well, I got one of those clickable 1000 honor/conquest items and sold some felblight so I had enough to buy another month with 39.5k gold. We'll see how it goes.