I'd love to go back to my old lenovo consumer-grade thinkpad. butter-soft rubber dome, upgradable hardware... I ran that thing with so many replacement parts and upgrades, only a broken mainboard and lack of AVX instructions made me switch. Really it was just the AVX instructions.
But since it is modular, I have now removed both hdd drives and the wifi card (yes, you can do that in these old devices. crazy, I know!) and now it is a very nice offline writing device. Syncing happens on LAN via syncthing when I plug it into ethernet