My almost 12 yo laptop is still OK for my job. I like its 3 buttons touchpad and touchpads have no buttons nowadays. I could keep it going for still a long time

My almost 12 yo laptop is still OK for my job. I like its 3 buttons touchpad and touchpads have no buttons nowadays. I could keep it going for still a long time but for two things: 1. Spare parts: RAM will fail (it's 1666 MHz), keyboards wear out (I've got one spare left), etc 2. Support wanes for some old hardware. I already can't update NVIDIA driver past a certain release (I'm on Linux.) Sooner or later I'll have to buy something new just to be able to read my screen or to cope with a failed irreplaceable part.