Comment by pmontra

My ZBook from 2014 is apparently made of sturdy plastic but the keyboard is built on a metal base and it fits in metal hooks on the chassis. It does not flex at all.

The problem with this machine is that sooner or later I'll run out of reasonably priced keyboards (they wear and the mechanisms under the most used keys break), maybe no more support for the graphic card neither from Nvidia nor from the open source driver, and go forbids if some RAM burns. Perhaps RAM from that age it still available but historically the prices hike when only a few desperate people look for it and have to pay a premium.

So eventually I'll have to buy a new laptop because of maintenance: hardware parts and software updates. I'm betting on another 2 or 3 years. There is nothing I particularly like on the market now but this laptop was a compromise too. Serviceability and 3 buttons on the touchpad vs a useless number pad that shifts the center of the keyboard to the left of the screen.