You can build a Steam Machine instead of buying one, admits Valve

Can't get a Steam Machine? Valve says PC gamers can build their own, thanks to SteamOS 3.8 and support for AMD hardware.

Can't afford a $1,049 Steam Machine? Valve will let you build your own

If Valve's expensive new Steam Machine is out of your budget, you might be able to save some money by building your own ...

Valve confirms you can build your own Steam Machine with latest SteamOS update

Valve confirmed that you can build your own Steam Machine PC with the most recent SteamOS update.
GameSpot

Valve Is Making It Easier To Build Your Own Steam Machine

The specs and pricing for Steam Machine have been revealed, and the preorders are opening soon. But if you’d rather sidestep that headache and build your own Steam Machine, Valve is officially making ...