The Sofitel in Arroyo 841 closes next month leaving its historic building that was inaugurated in 1929 Fifteen years ago, when it opened, it was major news. A group of foreigners had chosen a palatial tower in Retiro to install a luxury world-class hotel, the first of the French Accor chain in Argentina. The building is on Arroyo Street which is one of the most sought-after positions in Buenos Aires. Then the building was in a deteriorated condition and the  Argentine 2001 crisis was fresh (think…