The purchase by a U.S. consortium of the retailing chain Toys R Us was completed Thursday for 6.6 billion dollars, the toy firm said according to dpa. The final sum was greater than the 5.7-billion-dollar offer reported in March, when the sale was first floated. The consortium includes investment firms Bain Capital and Kohlberg, Kravis, Roberts and Co and the real estate firm Vornado Realty Trust. Toys R Us operates 1,500 outlets, including 677 toy stores in the U.S. and 620 abroad. The purchase includes the profitable Babies R Us, with 220 stores. Toys R Us was the country's leading toy retailer, but has been unseated by Wal-Mart in a bitterly competitive market.