Travel writer Arthur Frommer advises travellers that The less you spend, the more you enjoy. Why? Because the travel experience is more authentic, more relaxed and you are more likely to meet locals. For example, while staying at a Gaucho ranch called Panagea near Tacuarembó, Uruguay, I had the opportunity to learn about life in rural Uruguay by herding sheep and cattle alongside the ranchers. 
Would you ever consider biking across Africa from Cairo to Capetown? Tour d'Afrique, based in Toronto plans epic rides around the world. Here is a Lonely Planet video of the first leg of the trip. In many countries bicycles are the most appropriate means of transportation because they don't require expensive fuel and they can be adapted to carry heavy loads or serve as an ambulance.
