He's right though, 10 is not enough. For fractional gpu use, bandwidth, electricity, and engineering, service support, business dev, and marketing salaries at the google level? Even if we assume that they can run 100 users on each GPU, that wouldn't be enough. (They can't run 100 users on each gpu, but even if they could.)

There's some other play here? Not really sure what google's strategy is, but these prices make it clear they don't need to make money.