And then 3 months after that, there will be something better, and 3 months after that there will be something better, and 3 months after that there will be something better, and 3 months after that there will be something better, and 3 months after that there will be something better, and 3 months after that there will be something better..........
You get the idea. At some point you have to stop waiting and build a new rig.