Lived in Houston most of my life, and in places with public transit (good and bad) other parts.
My perspective: sprawl fucking sucks. That's what this is about - not just driving, but what a city built on driving leads to: sprawl. 45 minute commutes to college from Clear Lake while I'm doing nothing but kinda listening to an audiobook or something. So demotivating. Not really being able to hang with my classmates after school cause I can leave at 4 and get home in 45 minutes or 6/7 and get home in 1.5-2 hours.... or just wait until 9, 10, which fucks me cause the next morning I need to be on the road at 6:30 sharp if I want a "reasonable" 45 minute commute. Oh, and when I turn up to school, better leave 20 minutes to an hour to find parking. That's not hyperbole, parking was that bad at University of Houston.
Compared to the train I used to take to Mountain View - my "worst" commute from my time in the bay area. Still a "long" trip, but I'm sitting on a train reading, playing a video game, or sleeping. Traffic is not a consideration. I can go in rush hour or whenever, I'll still get there at the same time. I get off the train and bicycle to the office, leave my bike downstairs and that's it. No idling in the parking lot shitting out CO, waiting for someone to walk into the parking lot so I can offer them an AC ride to their spot in return for the ability to park in it when they leave.
Growing up in that sprawl was painful. Our suburbs were spread out not too bad, but enough to suck hard. One of my best friends was a good 3 miles away in a different suburb (so I had to go the long way round to actually get to an entrance. Sometime's I'd toss my bike over the 10 foot sound barrier thing and try to scale it but stopped after spraining an ankle). Bicycling there would take 20 minutes if there were bike lanes, but there weren't, there were "sidewalks" with giant roots pushing the concrete up that were too big to hop on the bike, or there'd be massive puddles in the dips or dirt and sand ready to slip me up, so I was on/off/on/off the bike, waiting 5 minutes at an intersection for a walk signal and still keeping my head on a swivel because nobody expects someone to actually walk in the burbs. So, it'd take me like 50 minutes to get to my friend's house. If it wasn't so hard, I think I would have hung outside more with my friends, and played less videogames. I distinctly remember chatting in WoW about how we'd consider hanging out, and then say "nah don't wanna bike an hour" and just play more WoW.
Then when you finally do get a car, it's not that much better. First spend 45 minutes driving a pentagram across the suburbs picking everyone up, then drive another 45 to get to the city or wherever. It just sucked!
So, I don't know about cost, I don't have the math for it, but it was terrible, terrible, TERRIBLE and I hated it growing up. The convenience of living in a mildly walkable city like SF with even the mediocre (from int'l standards) public transit they have here is to me leagues better than the bullshit I put up with in Houston. And then you go to a city like Taipei and see what this world is capable of creating... it's a dream.