[wmf]

I would predict the opposite. If you have 4,000 satellites you can justify ground stations but if you have one cubesat you might prefer to rent by the minute.

[toomuchtodo]

If you have one cubesat, you'll probably use Starlink (once operational) instead of your own ground station.

[gpm]

Is starlink going to work for third party satellite communication? Somehow I assumed that the antennas would be directional towards earth. Also the proposed ground stations are said to be pizza box sized, a bit large for a cubesat if they can't be miniaturized.

[toomuchtodo]

Good question. I reached out to a contact at SpaceX to get more info.