This. I bought a System76 laptop in 2011 which is still working very well with lubuntu for office and browser and such, it's now the laptop of my neighbourhood association. I could without problem upgrade RAM and drive to SSD, I could even swap the keyboard after I broke it.

I bought a new one from them this year, still incredible hardware.

My only issue with them, which is a big one, is that they ship only from USA. So as EU customer I have to pay VAT on top!