Chicaco: "Once a sure bet, taxi medallions becoming unsellable" https://news.ycombinator.com/item?id=9564478 http://www.usatoday.com/story/news/2015/05/17/taxi-medallion...
New York: "New York City Taxi Medallion Prices Keep Falling" https://news.ycombinator.com/item?id=8856231 http://www.nytimes.com/2015/01/08/upshot/new-york-city-taxi-...
Philadelphia: "Philly medallions fetch less than 17% of asking price" https://news.ycombinator.com/item?id=9528301 http://observer.com/2015/05/the-taxi-industry-is-in-total-co...