Comment by itake
10 hours ago
Apple's upgrade cycle (for me) has moved from 4 years to ~6 years.
Maybe upgrading the RAM or HD could be useful, but wear and tear on all components is a bigger concern for me than just one. My laptop is a critical part of my life. I can't risk being out of service for a week while parts arrive.
Its like buying a car... you can repair and maintain it to 200k miles, but the reliability will go down as more things break. Or you can buy a brand new machine to reclaim your time.
Off topic but I think many models of cars, when properly maintained, have very predictable and good reliability.