I originally though the OP was a tongue-in-cheek, but his follow up post seemed to be serious.
If you are working at Google in a high level position, and a start-up offers you a higher position with double the salary, would you take the job offer and move to a less prestigious company?
You are talking about the livelihoods of these players. Why should Childress go to a booming city with history for much more money, and with taxes covered and housing included? Most players aren't from the cities they play in. Who knows - in a few years we might see him on the Olympic team for another country. This is a great opportunity for him.
If he would have returned to the NBA, he wasn't going to be an all star and he wasn't going to win a championship with the Hawks, so why not take a year or two to get a lot of money tax free?
It is time to face reality. Basketball is too appealing to expect it to remain ignored by other countries. Baseball is sufficiently boring and football sufficiently confusing for other countries to ignore these sports. Basketball is simple and exciting, and is loved throughout the world. Other leagues will continue to become more and more profitable, and we may eventually see the kind of movement we see in soccer.
Why should we even expect cities like charlotte, atlanta, or milwaukee to complete financially with Moscow long term?