I know nothing about the business case for the purchase, but I'm very happy Ford did this. The station is an iconic landmark. A revitalized station should bring much needed renewal to the surrounding area. I've been there many times and the building is very cool. I wish I could have seen the city in the heyday.
http://fortune.com/2018/06/22/ford-michigan-central-station-detroit/
http://fortune.com/2018/06/22/ford-michigan-central-station-detroit/