Before I retired, 4.4 miles each way to downtown. I occasionally needed my car for work travel, often unplanned. So I normally drove. But I took the bus some when they offered a free bus pass. Once they got rid of the free bus pass, I don't think I ever took the bus.
Bus was 20 minutes if I timed the bus correctly using the tracking app (10 minutes walking, 10 minutes on board) and would have been $2/day. Driving the car was 15-20 minutes (depending on traffic, getting a good parking space, and whether I had to scrape ice off). Probably $2/day in gas and other operating costs plus $10/month parking pass. So cost and travel time were about the same. The bus was nice since I got to surf and read for the short ride, but it was crowded occasionally and I had to pay attention to the clock to catch it (or wait for another 10 minutes). That plus the random need for a car at work = driving won.
Mrs. RootofGood drives 44 miles round trip to the office (30-45 minutes each way). That's about $5 in gas, or $10-12 all in including other operating costs (including a $1.30 toll round trip). Other transportation options don't really exist (bike=die, transit=6+hours round trip plus a lot of walking/biking once in the office park area). So we pay the $12/day. We get to live in a lower COL area compared to housing near her office, and we have sidewalks, parks, ethnic groceries, etc all nearby (and zero Joneses with whom we must keep up!), so we drive very little except her commute. My job was also very close to our house, so once of us would have had a long commute.
Living where we do means saving $150-200k on housing plus $2000/yr on property taxes, hundreds on not having an HOA, and probably hundreds or thousands more not needing to meet an HOA's strict appearance regulations. And we are 1-2 miles from nearly EVERYTHING, so when we do drive, it's not very far. Out in suburban office park hell where nearby housing would be for Mrs. RootofGood's job, you have to drive a bit to get to places like Walmart, Aldi, and any kind of ethnic store and for parks, museums, etc.