Lack of space might be a reason why they exist but it’s not the only reason they might be preferable.
How are we feeding people on this planet and what are people doing with their days? If we’re trucking in supplies and everyone is working at MegaCorp, you need skyscrapers. Spread out domes are needed if you’re relying on self-sufficient kitchen gardens and the main purpose of the inhabitants is simply to survive there.
Lack of space might be a reason why they exist but it’s not the only reason they might be preferable.
How are we feeding people on this planet and what are people doing with their days? If we’re trucking in supplies and everyone is working at MegaCorp, you need skyscrapers. Spread out domes are needed if you’re relying on self-sufficient kitchen gardens and the main purpose of the inhabitants is simply to survive there.