I agree with the "just go ahead and change" on brake stuff. I do hate the idea of shops replacing parts to make money (and I'm sure that happens). But on my own cars which I keep forever, good, dependable, no worry brakes are at the top of the list. Rotors are cheap. Refinished ones or used ones can warp under on good hard panic stop (or so I've heard). Some fixes I just overdo and others I try to save money on.
Just one way of looking at it.
'85 300D turbo