"fake gravity via rotation" cities in space would be cheaper, have fewer catastrophic failure modes, and be easy (relatively) to construct in far more desirable

"fake gravity via rotation" cities in space would be cheaper, have fewer catastrophic failure modes, and be easy (relatively) to construct in far more desirable locations. It would be better to place the rotating cities inside Ceres or other asteroid, so you don't need to build thick walls to stop radiation and meteorites. Also you are already in a body you can mine and has a small gravity to build farms. Ceres is a good place to have a midway station to send ships further out the solar system. But another nice location would be an asteroid with an elliptic orbit and perihellion near Earth, aphelion near Ceres, that could act as a shuttle.