My friend spent his whole one month vacation in USA a couple years ago with his wife and two children. They flew from Finland to California, rented a car from there and drove to New York. And of course the route was via Las Vegas etc. A coast to coast road trip.
His trip gave me some valuable "inside information" about USA. Before his trip I always thought that USA is just one big unite county. But after he's trip I realized that all the states are in reality like different countries (a bit like EU vs. Finland). In his trip people were amazed when they saw the rental car's Californian license plates: "Wow have you really driven through all those other states?" And the farther they drove from the California, the more people were amazed. Just like someone with Spain's or UK's license plates would come to Finland. That's a quite rare occasion.
My intention is to travel to USA someday. New York would be the most probable destination, as it is one of the closest cities to Europe. Hopefully it will happen within the next ten years or so. I really want to see those skyscrapers with my own eyes.
But there's a lot to see in Europe also. And in Asia. And in South America. Canada would be nice to see also. And Japan and China and...
So many places, and so little time (and money)...