Manhattan was on track to have an estimated 90,000 hotel rooms at the end of 2014, a 10% increase from 2013. In October 2014, the Anbang Insurance Group, based in China, purchased the Waldorf Astoria New York for US$1.95 billion, making it the world's most expensive hotel ever sold.
Try to answer this question if possible (otherwise reply "unanswerable"): The Waldorf Astoria hotel sold for how many dollars?
1.95 billion