Well, you are implying that the GOPers want the buses to run, either. In a lot of places, bus service is a joke as well and there are a fair number of folks who don't want either service in their area (one of the arguments that apparently flew up in conversation against The Tide in Virginia Beach was not wanting an easy ride from certain parts of Norfolk to the nicer parts of Virginia Beach), and they barely tolerate the bus as the cheapest option they have to let run.
Well many seem to prefer the buses. Perhaps if there were no rail, then they would oppose buses at that point, I can't say for sure. But again, one of the most common arguments that I get is that buses cost less so we should do that instead.
I suspect that the big rub with commuter rail in at least some cases is the sheer startup cost. Assuming that the two modes cost the same net amount to operate, a rail system can swallow a few billion dollars easily enough. Even a local match on 10% of that will eat up the cost of replacing buses for years, and that makes a lot of folks blink.
Yes, I have no doubt that's a big problem for many, that is to say that they suffer from sticker shock when they hear the startup costs. And the news media doesn't help when they tout those numbers without publishing any reference points. Most people have no idea what it costs to run a bus, but they can find the price of a new bus and therefore think it cheaper.
What they don't realize is that it takes many more buses to get the job done. On average 5 to 7 buses are required to move what 1 railcar moves in this country. And buses last 10 to 12 years, whereas railcars average 30 to 40 and even longer in many cases. So you need to buy 3 entire fleets of buses to provide the same amount of service.
Finally, buses cost more to operate than any form of rail. On average in this county it costs 40 cents per passenger mile for heavy rail (subways & El's) and commuter rail. It costs 70 cents per passenger mile for light rail.
Put that passenger on a bus and it costs 90 cents per passenger mile.
Looking at it another way, out in Salt Lake City they started building their first light rail line in 1996. Coincidentally that is also the first year that the National Transit Database started publishing public reports on their website. So I went back and added up the capital costs for both buses & light rail, added that to the operating costs for a 12 year period from '96 through 2007. I then subtracted revenues collected from both totals.
When the dust settled, SLC taxpayers had spent $1.009 Billion all in on buses. They had spent $715.04 Million, with an M, all in on light rail. The dreaded train had cost the taxpayers nearly $300 Million less!
Now to be fair, SLC embarked on a major expansion of light rail in 2008. As of 2009, the expenses from that have now pushed LRT slightly into the lead. The 2010 & 2011 numbers will make that worse. But once construction finished later this year, the huge disparity in operating costs will quickly push the buses back into the lead $106M vs. $28M. Assuming no other new construction is started, I'd say with 5 to 6 years the buses will once again be back in the lead.
And after the final new line opens later this year, LRT will be carrying more passengers than the buses. They were already closing in back in 2010, having moved only 7 million fewer rides than the buses.