Another way would simply be to charge more for entrance to MP and thus use market forces to keep visitor numbers from sky-rocketing and thus impacts to a minimum. This strategy might also be fairer on the smaller tour companies based in Cusco who may not be able to compete in a public bidding contest for visits.

Both methods result in higher end prices for visitors, and is a normal consequence of high demand for a tourism site. The Galapagos Islands is a classic example.

Price sensitive visitors would thus see more value in visiting places like Choquequirao, which is under-visited at present.

What is uncertain, however, is whether visitors would choose not to travel to Peru because they thought the cost of seeing MP was too high. Maybe there is a study out there somewhere that looks at this issue.