It is interesting to note that they own the AWA site. The ASF site is leased.
It is also interesting to note that RP has never been to AWA, despite maintaining a residence in nearby Bellevue. He does have an office there -- other people swap using it Maybe he's been there and no one has seen him. Still, it's odd.
Another strike against AWA: they were originally slated for big expansion. Now, except for programs which support ongoing deals/programs, they are entirely gutted. Once those programs move down the pipe there will be no reason to maintain AWA.
The (non)closure of AWA might have more to do with real estate than science. That's a sweet site, but real estate is depressed in Seattle right now.