I guess some people just change components
out of necessity.
And don't think about the future,and
that maybe while one part is being replaced
then it would be worthwhile to replace
Its false economy,Don't replace it because
it saves money at the time,to find out that
6 mths down the line it needs changing,either
costing more in labour to fix or just more
aggro for you because you have to take a load
of components off again.
My motto has always been, if it ain't broke
don't fix it.
The only exception to this is if it will save
me or my wallet more hassle in the future.