Rehabilitation movements have been largely successful at restoring the plentiful supply of old and deteriorated housing that is readily available in inner cities. This rehabilitation can be seen as a superior alternative to expansion, for the location of the central city offers an intact infrastructure that should be taken advantage of: streets, public transportation, and other urban facilities. Furthermore, the changed perception of the central city that is encouraged by gentrification can be healthy for resource-deprived communities who have previously been largely ignored. Gentrifiers provide the political effectiveness needed to draw more government funding towards physical and social area improvements, while improving the overall quality of life by providing a larger tax base.