@ Blake and Radicool : I didn't want to discourage (the word exists in french, I hope it also exists in english) you from organizing events. Perhaps you'll find people interested in long events, but I work more than 50 hours a week, have a wife and 3 kids and therefore I have not much time for playing.
I'm also in the Weekly Series, which have indeed all the advantages BigJames mentions.
You should run in the Weekly with us, so that you'll see what people can be interested in, and then you'll manage to organize something that matches people's interest. Give it a try.