There was a time when the Telephone was termed as a luxury which was possessed by its proud owners which were very very few.
Later came the television which was initially also known as a highly luxurious possession.
As time went by, one could not think of stepping out of the house without the mobile phone, nor can one imagine a world without a television at home.
In the similar manner, travel has slowly become a necessity for one and all. Travel is food for the soul. Travel is widening of ones vision. Just as parents aspire to give the highest education to their children, they now have added travel to the same education.
In short, as countries grow in economies, so does travel.