I tried WoW, Everquest II, Anarchy Online, and Guild Wars.
I don't know if I am an addict, but I couldnt wait to leave these games and return to Star Wars Galaxies. The graphics for those games are nothing compared to those in SWG (considering you have a top notch video card and over a gig memory). Everything about SWG, from combat to chat is more interesting. Plus I like the player base more. The other RPG's I played had too many immature players whose first response to a help request is "n00b". There are guilds in SWG that would boot your arse if you are immature, rude, or speak in leet.
For those who tried SWG in the past and thought it was nothing more than a grind fest, then you should try it again. The combat revamp changed everything. The typical experience is about 6,000 for a kill. I was able to master Rifleman in 6 hours.
The game plus its two expansion is only $30 and you get the first month free. I think its well worth it just to try the game for that month.
If anyone does decide to, then join the Valcyn galaxy. I will help you out with whatever you need. My in game name is Anori.
Offline RPG's are fun, but they don't give much strategic options. Its one thing to fight a computer, its another to fight a human.