On the other other hand, the average system in that survey presumably cost more than what the Steam Machine will retail for, if we're correct in interpreting this as being a competitor to dedicated consoles.
But even if it's double the price of the PS5/Xbox, it's still likely to be less than the price (at the time of purchase) of the mean PC in the hardware survey. For every gamer out there struggling along on a $500 mini-PC, there's another who plunked down $5,000 to play Cookie Clicker at 8K/240 FPS.