I just got home from my indy, where I had my PS lines done (M60 engine so there is no room <> DIY!) and my flexdisk/Guibo joint. He pointed out that I need new belts, which is correct and my rear brakes need replacing. Fine. He then told me that I should replace the rotors EACH time I do a brake job.

Is this true? It seems heavy handed, but after 4 years with an M60 I'll believe anything. Any thoughts?