Hi, I need someone's help. I am thinking of going for the 8605 National Parks & Canyon Country Incl Las Vegas Extension tour this coming July 2005. After going through the itinerary, both Cosmos and Globus are the same but US$800 difference. What are the differences between these 2 tours? I like natures and parks, is this tour a good one to consider ? When compared to Contiki, which is better ? Thanks for your replies.