I think this could be a topic on it's own, I posted it earlier in a reply:
One of my relatives in Amsterdam has connections with the inner circle (staff) at watchtower HQ. He was told that watchtower was planning moving out of Brooklyn decades ago (before 1995).
When the city of New York started bidding for the Summer Olympics 2012, watchtower made serious plans and made agreements for leasing their buildings for tourist accommodation during the Olympics.
From the moment it was known that New York didn't get the Olympics in 2012 they started selling their property.
My source is the most reliable, this is absolute true.
Gorby