Actually, SpaceX only launched two successful F1s, flights 4 and 5, before moving on the the development of the F9. And there was only one demonstration flight

Actually, SpaceX only launched two successful F1s, flights 4 and 5, before moving on the the development of the F9. And there was only one demonstration flight of F9 before it flew with the first Dragon. So it's not exactly like the test flights have been that many.