Travel is a double-edged sword.
For every extra luxury beachfront bungalow, there is a matching increase in sand-staining sewage. For every backpacker's voyage of discovery, there is another restaurant that ditches local specialties for banana pancakes and granola. For every airport, there are an extra 1,000 Jackie Collins novels unleashed upon the world. And for the visited, every tourist dollar is simultaneously income, and a reminder of their income inequality with the visitor. And yet since the time of Marco Polo it has been an axiom that, at least for the individual doing the actual moving around, journeys are a Good Thing.