I'm considering it, but as a replacement for the desktop gaming machine.

I'm already running Linux on the desktop. I don't use it for anything else, I have a MacBook for non-gaming. The desktop is due for an upgrade soon, and upgrading to a Steam Machine makes total sense to me. I don't have to deal with driver issues, and I get a supported config that will just work with my steam library. I might have to put my current SSD into a cage and add it as an external drive somehow, because I don't want to download a couple of TB of Steam library.

I don't give a shit about graphics quality - I play games for the gameplay not for the graphics, and mostly play strategy games anyway.

I already have a Deck and love that for travelling. A Machine as a non-travelling version of that would be great.