It is more than fair, also, you're comparing your 5k devices to 12k and more importantly 65k and >10m devices.
The "to be fair" part of my comment was saying that the tinygrad website doesn't claim 120B.
Also nobody is comparing this box to an $10M nVidia rack scale deployment. They're comparing it to putting all of the same parts into their Newegg basket and putting it together themself.