My father is currently using my 9yo MBP 1,1 with the 17" screen. The only reason I dumped it was the 2G RAM limitation.

Additionally, I have had a MacPro 1,1 running in my den for the same 9 years. 16G of RAM, and it could be doubled to 32G if so desired.

I owned a Dell laptop (running Linux) from the same time period. It ran for an astounding 2 whole years before hacking up a lung.