[El Jay]

A lot of rotors are "1 time use, only." There isn't enough material there to turn, even w/ factory rotors.

As an aside, I broke a ball joint on my '69, right before going on vacation (talk about lucky) a couple years ago. I didn't have time to do the work myself. So Ihad the truck towed to a local front end/brake shop for repairs.
I told them, while they were at it, check the brakes & do what was needed.
I ended up w/ a 4 wheel brake job, which didn't surprise me because I was having "issues" w/ stopping in a straight line, etc.
2 ball joints, idler arm, 4 wheel brake job & some other misc. parts like spring kits, etc, was about $1200.

I said all that, just to say this.
About a year later, I was losing brake fluid.
So I pulled the wheels/drums to look for the leak.
It ended up I had a stuck self adjuster.
"No big deal", sez I, until I went to knock the "knock outs" outta the drums. They weren't there.
Adjusting the brakes just became a minor pain in the butt because they used cheaper, imported parts.
It isn't really a big deal. It is just a pain.

That's just my .02 this morning.