You can consider budget hotels. Many hotels have introduced Expo rooms. However, during the Expo, all hotels cancelled the discount rooms, and the prices of all rooms increased. You can choose the surrounding areas, as long as the transportation is convenient, such as near the subway, or near the railway station and South Railway Station, instead of choosing the Expo site. I recommend Hanting and Home Inn for you, but it's almost more than 211. You can check it on their official website. You can choose Pudong, Xuhui, Luwan and other surrounding areas and choose the cheaper one. Still have to hurry, maybe there will be no room then.