Class D was implemented to calm down (read, shut up) a prominent aviation identity. Except it isn't really Class D is it. Class D you can call inbound from anywhere, what we really have is GAAP re-named Class D. Carrum and Braahton were the only inbound reporting points I could find without putting it into the pad or GPS, meaning, you could find Carrum while still looking out the window instead of having to navigate via GPS via the other points cos they've all blended in to the urban sprawl. By the looks of that pic, most of them are going to head in via Carrum.