Arlington sucks, and this is from a long time Ft. Worth resident.
As to why..
http://en.wikipedia.org/wiki/Arlington,_Texas
Arlington is currently the largest city in the United States not served by a comprehensive public transportation system, leaving Arlington residents with only ad-hoc options when their vehicles break down for extended periods. Voters have eschewed funding a fixed-route bus transit system three times (while still finding the money for professional football and baseball stadiums, though the first such attempt was back in 1980 and no attempts at passage have been made in the last ten years.
They have basically said that mass transit would attract too many "undesirables" and they don't want "those people" in their city.