Hello stephenson

Personal choice, no harm done. RE: Why would you want to replace bearings when they simply need to be serviced?

As am I. RE: Am still laughing about cryo treated brake materials for a 120 hp car ....

You must pack grease into the bearing hub to feed bearings, not rotor, that was just a case of poor wording.

Pushing the brake pedal to floor during brake bleeding, can NOT damage seals in a good master cylinder, such a condition would be a CRITICAL SAFETY = NHTSA issue.
National Highway Traffic Safety Administration = (NHTSA).

Please define; nothing wrong with your brakes.
I know many people who compulsively replace brake pads at 75%.

Why would you want to buy the cheapest of anything = P E H, please help!!!

The second portion of this question defies logic:
and then spend extra on other parts of the same subsystem?