I’m not an expert in any of the following, but a couple reasons might be: 1) Living on multiple bodies would do wonders for the imagination and further space e

I’m not an expert in any of the following, but a couple reasons might be: 1) Living on multiple bodies would do wonders for the imagination and further space exploration. 2) reduced gravity launches for spacecraft to places other than earth 3) a test environment for developing technologies in a completely different space. The ISS serves this somewhat, but it seems like the scalability is very limited, especially manufacturing.