I see.. :-P
Laptops and Desktops PCs can last long if you take good care of them. Like using Air-dusters to blow out dust and particals also as I metioned before using air cooling fans under the laptop to keep them from over heating. Those are what I call physical Mantenance that you have to do so you can keep them alive. Trust me my first computer was a Desktop (windows 2000) even after over 15 years that thing is still working because I kept the inside clean from dust particals also cheking the computer techniaclly for any viruses, Malware, and spyware, and making sure all the system files and Bios are intact.