Even in places that have mass transit _and_ massive funding for mass transit, improvements are horrible to non-existent (see California).
If I take mass transit, the cost is 80.00/wk to go about 100 miles round trip daily, and I have to walk or bicycle the last 1-2 miles. It's not cheap, it's not convenient, and it's not faster than driving most of the time. In large part, this is due to the California welfare state and a large portion of riders not paying their fair. The bigger part however, is that instead of putting money into this system the legislature decided to build an 80billion dollar bullet train to run from near LA to near SF. Because the only way to get 9 million commuters off the freeway is to do absolutely nothing about it. *sigh*
Detroit is another example of a place that took shit tons of tax payer money to build a fancy merry go round called "The People Mover", which is a laughable system that supports the Casinos, a couple parking garages, and the RenCen.
In other words, demand for public transit does not make public transit happen.