>Then you wouldn't have any laptop, but also no justification to demand an immediate replacement or deem not receiving one "unacceptable"
My computer failed to start one morning, it was my work only computer that I use for my job(work remote from a village) so I went in the city with the PC, I found a shop, the person there tested my RAM,CPU and other parts, the motherboard was broken, I baught a new motherboard , paid the poerson to replace it, I also asked for a GPU upgrade and a cleaning.
In a few hours I was back working. If this was a MacBook there is no store in the small city I live near, I would probably had to find someone that could "illegaly" test the laptop and that would use his connections to find me some "illegal" parts and wait for those parts to arrive.
I am also using my PCs after the warranty expires and fix them if a component breaks(like memory). My old AMD Phenom 2 is still running (my son uses it for lite gaming). is the one that I had to replace the motherboard. (I also bought a quality APS to keep my equipment safe)