Free parking is also quite expensive, although it's hard to see.
It increases the costs of private properties when it's part of the property, and public parking increases government expenditures. It also consumes lots of otherwise very valuable space.
That's without factoring in the increased costs on social structures from the extra drivers on the road when there is more parking space.
If you are going to work as a freelancer and bill commute as working time (as you should, to disincentivize useless meetings), you might even make money while being driven.