What are ways to break my WoW addiction?

I keep uninstalling WoW and deleting my characters. But I always come back a week later and ask GMs to reinstate my characters. I love RPGs and strategic games, but need to stop paying for wow. I am not opposed to another MMO, but preferably Another type of game. I tried WAR, but maybe I was so used to wow that I couldnt get into it.