Phoronix article: https://www.phoronix.com/news/Steam-Machines-Frame-2026
Also listed here: https://store.steampowered.com/sale/hardware
Valve has already sent support for the new Steam Controller upstream: https://www.phoronix.com/news/New-Steam-Controller-SDL
Yeah, I was very surprised to see the only upgrade is a generous storage from 512 GiB to 2 TiB… I would rather build my own PC, spend a little extra, cover other needs I have (zfs pool for videos), and get a good GPU that I can always replace for a newer one in a few years… But of course, that’s just me. That new GPU could easily cost as much as the Steam Machine itself, hehe. Of course, it would be way more powerful…
If you’re comfortable building your own PC, its probably always going to be the best option for you because you can get exactly what you want and skip the stuff you don’t want and you don’t pay the markup for prebuilts.
Steam machine is targeted at people who don’t want to build their own system but are interested in the bigger and cheaper game libraries on PC and maybe some of the additional functionality and flexibility you get over a console.