hmmm, an interesting take...personally, i'm of the preventative-maintenance school of thought and i figure i've rode this timing belt for about 100k, it's time to change them. i'm not trying to be that guy driving up to canada or whatever and be in the middle of nowhere with kids in the backseat and then have my car take a dump on me...it ain't cheap but on the flip side, if it does break on me because i neglected to change it before hand, i'm gonna WISH i had... ;)