Is this really a big surprise to anyone, especially the locals in PIT? Given that US operated this route a few years ago, they should have expected the same result with DL operating it. Keep in mind that US ran this route while it was being fed by some connecting traffic, and that still wasn't enough to keep it alive. With DL depending strictly on passengers originating in PIT, the loads are bound to be even less. Even with the downsizing in PIT by US, I'm sure they would have considered keeping the route with the revenue assistance of the the locals had it been worth the effort. I realize that at this point DL hasn't pulled the plug, but I expect they will when the $$$ stop coming in from the city/airport.