I have never had a pump fail. IME I lived with the slowly leaking rack for
quite some time until the rate of leakage increased. The car tells you when
the fluid is low, so as long as you are prepared with an extra bottle or two
of Pentosin I wouldn't worry about it, just monitor it ...
I'll post this to the list as well. I am speaking from a sample of 1, there
may be some more extreme examples out there ...
San Jose, CA (USA)