My PC is over 20 years old. I’ve only needed to replace the GPU twice, motherboard/ram twice, power supply once, and am on my third hard drive.

Computer of Theseus 🤭.

I mean, I did something similar with my desktop, until it died because cats.

Urine, hair, or chewed through the wire zapping the fuck out of everything?
The first one. It was shortly before I neutered them 😅. And they aimed directly at the air vents. The GPU and MoBo went toast 🤣.
I lost a Sega Dreamcast that way, luckily I had just bought it a couple days before, so we de-stank it the best we could and exchanged it for a new one 🤣