WHO said travel is the only thing you buy that makes you richer?
Jean-Léon Gérôme – Le Muezzin 
What can you buy that makes you richer?
Gifts and donations are both things you can buy that make YOU richer. Not only that, they make others richer and the world at large once the seed of giving is planted.
How does travel make you richer?
Why Travel Is the Only Thing You Buy That Makes You Richer. From the financial aspect, travel is usually a big expense and causes a reduction of your assets, but it really gives you many invaluable things that make you richer in many aspects like experience, knowledge, friendship, etc.
Do rich people travel a lot?
Often rich people move to another country and live there long enough to reveal the richness and diversity of the world. Moreover, rich people prefer meet other people while traveling which is one more way to enjoy the life in modern world.