The MOZA HBP handbrake is a compact accessory that gets yanked repeatedly during drifting and rally driving, so the return spring and pivot points see real wear. If you notice reduced return tension, inconsistent travel, or a "mushy" feel, the likely fixes involve spring replacement, pivot/bushing service, or re-tightening mounting hardware.
Those repairs are usually inexpensive and, if you like the feel and mounting, repair is often the right call-provided parts and labor don't exceed the low threshold. Replacement makes more sense if the position sensor is failing (jittery input) and you also have physical damage (bent lever, stripped mounts) or persistent USB connection issues.
Because handbrakes are relatively affordable, reliability and feel preference often drive the replace decision. Pricing referenced from MOZA's US store listing for the HBP handbrake.