In 3 gens, why has Microsoft still not created reliable hardware?

[Farsala]

Nintendo consoles were fine but least played in my household.

Phat PS1 was fine, Phat PS2 was fine, Phat PS3 failed after 6 years and floor, PS4 is fine. All played quite a bit.

OG Xbox was fine, 2 Phat 360s failed after about 1 year of play each. OG Xbox played a lot, 360s barely played.

PCs became not very useful after 10 years, but they still work.