Antz and Joshdub thank you for posting. I change my oil every 5K just to clarify and please dont compare engine oil to brake fluid thats just silly. You reinforced my point exactly, BMW brake fluid is not labeled as a lifetime fluid yet it has held up as good as one. I'm not questioning the properties of BMW fluid being special, its obvious to anyone its the same as any quality brake fluid.
Again for the majority of owners that live in the regions I have lived, a fluid replacement may be an unnecessary expense that is all I am stating. Now $15 that's just absurd call any indy shop or dealer and ask what brake flush and fluid replacement runs closer to $200-300 in CA quite a bit more. That money can be better spent on other maintenance, and if you worried seems like once every five years for preventive care would suffice. Again just my opinion.