Also, I don't mean to spam, but I just took a spin through the other quadrants....
They're totally empty. Virtually all of the current players are in the southeast quadrant. I am increasingly fond of the idea of sending a colony ship on a marathon... but the center of the galaxy is too obvious. Lots of people look there. Somewhere in the southwest quadrant seems like a better plan to me, if we want to develop a citadel somewhere.