The Cary gear I have owned (two preamps and two amps) has been very reliable. (Actually, I haven’t put enough time on the latest preamp yet to fully make that determination.)
I once owned a pair of Audio Research VTM 120s that sounded great but had a nasty habit of blowing a random grid resistor when I turned them on.
I have a Rega Jupiter transport that I no longer use, but it has lasted forever.
A digital cable went bad on me once.
My Carver CDP took a crap, but it had a lot of miles on it. My B&K digital HT pre started doing wonky things before I gave up on HT.
I got this HP desktop I am presently typing on in 2012 (Windows 7!) and it is doing some goofy things here and there, but it is still my only PC.