What is the most affordable Camino?

The question was:

I have been traveling for years pretty minimally in terms of finances and have become very fascinated with the prospect of going on one of the many trails associated with El Camino. I have no problem camping in a tent but as I’ve had less energy this year from burning out from a ton of work, the prospect of sleeping under a roof in a building actually dedicated to hikers/pilgrims is insanely appealing to me on this adventure.

What I want to know is— which paths/parts are typically the most affordable or even free in terms of accommodation??

Read all about the most affordable Camino here on the forum.