I'm not sure I would like that hypothetical world, because that beach would be crowded beyond what one can imagine, or, alternatively, controls would be implemented to manage crowding. For example, if people now are willing to spend $500 to travel to Rio, and the price drops to $5, one could easily require non-locals to buy beach permits for $100 a day or $250 a week. The best beaches could even go higher and aim for the jet set as, for example, Monaco already does to some extent, and China and Nepal do for Mount Everest.

So far, things seem sort-of OK, but of course, people would flock to other places as well. Millions would want to visit the poles for a few hours, see total solar eclipses at the most remote places, and the trek of the wildebeest would be dwarfed by the trek of the tourists. We would need lots of new rules to protect natural habitats that now partly are protected because that are so remote.