If you want a cheaper ride and a free once of a lifetime experience look into route taxis. Traveling like a local is not only entertaining but can save you a s-ton of money if you chat people up in order to find the non tourist rates for stuff. EVERYONE in route taxis know the going rate for fruits, veggies, chicken, goat, pork, beer...maybe even cheap lodging options.....if you have a long vacation these chats can save you some $$$.