I definitely have to pile on to the fact that the P-07 DUTY was the first one sold, had minor cosmetic issues that caused all kinds of hooplah, and eventually the factory rebuilt the gun after the P-09 was finalized, using many design highlights of the P-09. So yes, the first gen might be what you see for sale more often in the P-07, the DUTY model.
My P-09 is Cajunized, and "it ain't goin' nowheres!"