Sales-predators understand they could mark up costs on these consumers, who are unlikely to know if they are being overcharged. Try and get you drinking out of the way in South America and South East Asia while the drink is low-cost. Even if you cut out an one or 2 city stops and exchange them for National Parks and treking, then you will find the cost of taking a trip a lot less. In Italy I got scrumptious pizza for about $2 a slice.