Well, maybe I guess. The pristine green 2 speed frame I bought cost me $350 shipped from Michigan to Cal. It cost the guy $60 to ship it. Seemed fair to me.
Two speed frames are few & far between.
My single speed frame I bought from Randy for $175 shipped I think. It was in perfect condition.
If I give the ebay guy credit for the wheels, $100, and the tires.... another $100, he's selling the frame for $350.
Sound fair to you?