The High Line has become a tourist-clogged catwalk and a catalyst for some of the most rapid gentrification in the city’s history.
Old buildings and other landmarks such as an abandon elevated train tracks are eye sores for a community. With these run down areas it makes the city or town look desolute and uninviting. now in order to achieve a better economic level in a city the old buildings deter buisness investing into that place. Therefore it's more of a postive to rebuild and fix these places so the cities can get more buisnesses and jobs there.
Via Seth Dixon