The ThinkPad T430 is quite repairable in that regard. I've replaced the screen in 20 minutes, replaced the CPU, all the SSD-s are easily accessible, and there's plenty of spare parts out there due to the fact that it's a model that was once popular and bought in bulk by many businesses.
But yes, some models probably don't have the same level of second-hand parts market, making repair difficult.
Otherwise just restore the backup to a 5 year old laptop.
If you laptop server can run for 5 or 10 years, there is a good chance that during that time, you spilled coffee in the keyboard of another laptop, making it a good candidate for the new server.
I have a 12 year old laptop, that has been a server for 8 years.
My take on this, the answer is yes, until a hardware part fails, and in 10 year old computers, they do.
Then it gets tricky: laptops, especially 10 year old laptops can be very hard to fix.