Everything must be matained forever or it will disappear. Areas of economic unproditivity will be capitalized on. If there were no crowds of tourists filling an

Everything must be matained forever or it will disappear. Areas of economic unproditivity will be capitalized on. If there were no crowds of tourists filling ancient cities, there'd be less incentive to maintain them or not replace them with new construction. If no one used our national parks they'd be sold off to developers or resource extractors. You can't have it both ways. Either tourism and outdoor recreation are popular and the market will respond by preserving unique places worth seeing. Or there will be no interest in preserving these places and our very large and resource hungry population will put these places to more productive use.