Key Arena is owned by the City of Seattle. Qwest Field and Safeco are both owned (to some degree or another) by the people of Washington State through Public Facility Districts.
So, all three major sports venues in Washington (not including obvious college venues) are publicy owned, one more directly.;
Not really any facts here to back this up, but I think this makes the situation with Key more volatile. I'm all for more democracy, but that Key Arena is directly managed by elected officials, rather than a board appointed by elected officials, makes it more likely that folks will have problems with the arena's management.
More of a public issue, if you know what I mean.