Jason,
No apology necessary. You bring up a good point. In a sense I agree with what you've said and in a sense I don't. While I do believe that cars did indeed kill the original railway, I think there is a greater purpose that the railways served, and one that is still very much relevant today. Simply put, if a large group of people want to see cars in several places, the most efficient way to move those people is via the railway. While not ignoring or denying the existence of cars, we are focusing on what the railway does best: moving large groups of people to designated places.
The slightly less simply put response: In their heyday railroads met our transportation needs while cars meet our transportation wants. The interstate highway system was just "gilding the lilly" making even long distance travel convenient by automobile. Railroads struggled to keep up by improving service, offering additional amenities, and luxuries. But as I learned in church and school as a boy, always getting what we want instead of what we need spoils us and makes a greedy. People love the personal freedom of the automobile, and perhaps that has to stop, or reach its logical conclusion.
I don't think there will ever be another mode of public transportation that comes close to railroads efficiency and sustainability. In that sense automobiles have yet to come close. Also, the railroad achieves another thing the car fails to- down to its core railways are a community affair while the automobile is a personal, individual one. So when we lost the small railways, we lost our small communities too.
There are so many things the railway did which have yet to be improved on by other forms of transportation technology, why not focus on those? I like the idea of those different era days by the way.
Steve