How much would you pay to live in Christian Grey's kinky Fifty Shades of Grey penthouse? Some people are laying down serious money to move into the Seattle apartment building featured in the movie trailer. Since the movie trailer's debut, sales at the complex —where the average unit costs around $1 million— are through the roof. The building's real estate broker told CNNMoney that it's overwhelmingly women ages 19 to 50 who call his firm, begging also to spend a night or two in the famous (and let's not forget fictional) penthouse.