Someone help please! I HAVE to get from Buenos Aires to Cusco on or around the date of January 7th. I know you can fly however there are two problems with this. First, flights are SOOOO expensive!! I can actually fly from Baltimore to Cusco cheaper than from Buenos Aires! What's up with this? Secondly, I would hate to miss the beautiful ride through the Andes by simply flying over. I know there is bus service but everything I have read says how unsafe this is as well as it takes 5 days and is pretty easy to screw up. Does anyone know anything about a train? This is my last hope. Thanks for ANY input you might have.