My ~30 year-old MTB cost me $150. Good luck finding a car with that much value! It's already paid for itself twice over in the last year, just from not having to spend it on gas.

And the kicker? The components are dirt cheap compared to modern bike parts. AND I can fix the entire thing at home.

I bought a new cassette, chain and derailleur for my main bike; it's probably 20-30 years old in it's frame and has some signs of wear, but those parts are probably the most I've "invested" in keeping it running well. Compare to a car with new belts, filters, etc. It's crazy our cities are not designed more densely.