Are self-adjusting brakes really self-adjusting?

elkhorn98 wrote:
Not sure how it could cost more than disc brakes.

For sure it is less than disks. Disks get reported as a huge improvement over drum. Yes drum will work better if always adjusted up right but you still have drums. If I was to make the effort to replace the whole business I would probably take the next leap all the way to disk. That is all I am saying.