There's a lot of interesting things manufacturing-wise you can do in zero gravity which are now pretty impractical financially since it's so hard to get raw mat

There's a lot of interesting things manufacturing-wise you can do in zero gravity which are now pretty impractical financially since it's so hard to get raw materials up the Earth's gravity well. It might be cheaper to get them from elsewhere where the gravity wells are shallower and the lack of air lets you use a mass driver rather than a rocket. Then it's a long slow trip to Earth orbit via ion driver but if it's just a hunk of metal it doesn't care.