Seattle is a larger and denser urban community all the way around. However, this should not be used as an excuse to why they can pull something rail-based off and we can't. For every dense community (Seattle, Los Angeles, NYC, Boston, New Orleans, Philly, etc.) that has invested in rail, you'll find another that is suburban (Phoenix, Charlotte, Tacoma, Little Rock, Nashville, Kenosha, etc.) and invested also.