I also have my eye on SWtOR -- we'll see. I've been playin WoW for like 5 years as well and am hoping cata might revitalize my interest - I keep loggin in every few weeks and tinkering around but really haven't cared about any of my toon's progression, etc since about the time I realized I was a girl (have had other things on my mind.).
Since my subscription doesn't run out till like December, i'll probably continue with wow for a while, but since Jennypenny can't play with me anymore (using a PC and playing games is really hard on her physically - hurts her wrists and give her headaches.) I have kinda lost the motivation to play since I can't play with her, and I'd rather explore my discovered gender identity in my spare time lately.
I'm sure I'll eventually return to play more regularly since RPG's have always been a big part of my life ever since I was like 8 years old (old pencil and paper / dice RPGs). However I am not sure that I will play as crazy/often as I used to since I don't need to escape into the fantasy world to be accepted as a girl anymore.
When I realized I could create a character, play a role and act how I wanted to (even if I couldn't act that way in real life) - it has been my 'drug' of choice. Now that you can experience an online world that was only once available in my imagination, it is even so much cooler in a computer-generated MMORPG. I'm not tied to any specific genre (have played fantasy, sci fi, superhero, post-apocalypse, werewolf/vampire, old western, super robot mecha, and all kinds of others... ) its all about how rich the content is, and how the world is implemented.