That basically limits it to models that cost >800$ making it a very niche product.
I actually have used old chromebooks with crouton to install steam and play games. You have to pick "lightweight" games like Baldurs Gate, but it still opens up a lot of possibility.
So I had hoped maybe something could be brought to old hardware, but I guess not.
I was able to turn up the graphical settings up much higher than what my regular desktop's ageing GTX 970 graphics card can get, while still maintaining a high frame rate.
Latency is low enough to have fun and contribute to the team. Wasn't a good experience over cellular, but it was very good on a wired connection.
I was very happy to have had a streaming option available at the time.
Or older games, for that matter.