In the late noughties I worked for a smallish company where engineers got MBPs and everyone else got mid-range PC business laptops (I think Dell or someone?) The failure rate on the PC laptops was just astonishing; they were practically disposable. The failure rate of the MBPs was higher than you'd see today, though not as bad. Replacing machines in under 3 years was the norm because many of them didn't _work_ after 3 years.