Why we are not now, and have no intention of becoming a Google Lunar X-Prize team.
Media rights: That's the basic reason. They want them all, we need some to operate.
Micromanagement: We don't need to be told what technologies we can or can't use. We don't need to be told who are sponsors could or may not be. We don't want to run every decision past this names XPF before implimenting them.
Stability concerns: We don't like the vagueness of the rules and how long it will take to narrow down simple points.