Tourism and travel is very entertaining, knowledgeable, to some very boring, while to some it's educative.
Tourism yields income through visiting interested sites to learn more about an idea. It also gives inspirations.
Tourism relaxes your mind and gives you fresh feeling. Also get to know about new places, religion and their beliefs, about cultures...

Tourism is a centre of attraction and thus yields income through write ups about history and experiences, it does sell.

Indeed tourism invokes a wonderful experience which could be quite memorable