Valve put together a good product this time compared to the first steam machines push. Most games work without fuss and it’s priced well. They didn’t start the handheld PC market but they sort of Apple’ed it by taking something other companies had been doing and streamlined it enough to get mainstream copycats, Lenovo/Asus/etc. Plus SteamOS/bug picture looks a lot better today than 10 years ago. So proven market/platform that can again try to undercut Windows machines in price because Linux is free and leverages the work of open source developers