It's small, sturdy, maintainable, and aesthetically pleasing. And one can still get (original) parts. Throw in enthusiast projects like this and you can have your own "Laptop of Theseus".

The keyboard is absolutely glorious, for one.

Mine still works as well as expected after 17 years, 5-6 of which it spent with heavy daily use, another 2-3 with light use, only occasionally afterwards, and overall a lot of travel and airports. I could disassemble and reassemble it to the last screw easily, no special tools besides a screwdriver, no glue, upgradeable RAM and storage. Actually my one major complaint is Lenovo's use of whitelisting for wireless cards.

But I wouldn't pay $1300+ to bring it up to speed. The batteries are done, the screen is small and the backlight is yellowed and dimming. That laptop would need a lot more love to make it fully usable as a daily driver so I'd rather keep it as it is, as a memory.