Comment by atleastoptimal

This seems inevitable for most industries in the US (car/general manufacturing)

1. City/region becomes a boom-town based on a new high profit-margin industry

2. As that region becomes more wealthy, labor increases in price, thus there is more incentive to seek labor/resources for that industry outside the city/region

3. City/region hollows out of middle-class level jobs for the industry, retains ceremonial labor and executive offices.