Is it worth the extra price to stay in the Lodge at the entrance to Machu Picchu? Have been to Machu Picchu before but only for 1/2 day; was thinking to stay overnight to be able to see sunset/sunrise. Also I read that there are hot springs in Agua Calientes? Worth the trouble to stay in town to use these? Has anyone used R. Crusoe Travel Agency, Chicago? Or PeruTourism directly?