I bought a Dell Laptop at Best Buy in 2017. On Sale for $429 marked down from reg price of $599 at the time.
2019 The Hard Drive died. Took it to a reputable Computer repair shop, and it cost me $185 for a new SSDI HD to be installed, plus windows to be reuploaded, plus optimization. For all he did I felt it was a good price.
Anyway, not even 4 months later, the Power jack went bad. Took it to the shop because I thought it was a bios problem according to Google, and all the fixes I tried did not work. Ended up needing a new power jack. They also said I had to use a beefier charging cable to go along with the new jack. Plus they re optimized the laptop for me again to speed it back up. Another $150. So far, I have $790 or so into the laptop, and it is having battery charging problems again...started two days ago.
So about $200 per year in overall costs SO FAR, but this isn't even my main laptop. It's my secondary laptop, and I only use it about 1/5th as often as my main laptop. I don't plan on spending any more money on it, and I guess for the money maybe I got my money's worth out of the machine?
I haven't bought a Macbook ever in my life, but it seems as far as PCs go I can only recall ONE Laptop lasting me more than 4 years, and not having any serious problems (The Beats HP Laptop that I had 2013-2020) It seems that a laptop lifespan is about 3-4 years without money being poured into it. Then again, I have never bought a PC laptop that was over $1,000 either.