Thais earning low wages (up to 150,000 baht a year) don’t pay any income tax, and they pay the same as a Thai billionaire would to visit a national park. We would hope the Thai on meager wages pays a small price to see his country’s most spectacular man-made and natural attractions, and that a Thai billionaire, after paying so much in income tax, also gets a fair deal. Whether it should be exactly the same price is a question that is complex. Should even the big spending foreigners from abroad pay the same as a year-out student, given the amount of money one is spending in Thailand? To set prices using taxonomics, as is it putatively presently done, makes fairness a very confusing matter.