There's always this absurd argument that shacks, stores and tourist activities don't have any regulation of prices. While the tourist can choose whether to eat at a shack or select another restaurant, there's zero choice left for him to get out of the airport to his hotel, with that entire luggage. Stores have proper regulation due to printed MRPs, and even if some products don't have printed MRPs, the open market and competition will always ensure that the consumer will get best deals. Same goes for tourist activities- there's no cartel involved in any of these, and the tourist won't find himself stranded, if he doesn't patronize these businesses. Taxis are employed out of compulsion.