Exactly, NuGuy. So we're spending billions and billions on a project that will have marginal improvements. And in the end, there's only a few areas of the US that have true congestion. For the other 95% of the country good old radar works just fine. It may be expensive to power and maintain but hey, it's paid for.

A much better solution is, as you said, more runways or redrawing airspace properly. Or hey, what about tight slot control to EWR, JFK, LGA and TEB? And I don't mean the lame attempt we've tried so far. I mean serious "if you don't make an appointment you're not landing" slot control. Oh but everyone will complain that there isn't 15 flights daily to RDU or the jets are flying over their house and blowing off their imported italian granite roof tiles.

In the end I think everyone is just happier dealing with the inefficiencies.