Because GPUs are expensive, much more expensive than launch costs if they get starship to the low end of the range they’re aiming for, and you want your expensive equipment running as much as possible to amortize the cost down?
But the GPUs on the ground will be a lot cheaper to manufacture as they don't have to deal with space conditions.
It seems a real stretch to me to assume that costs for putting GPUs into space can ever come within a factor of 2-3 of putting them on the ground, even neglecting launch costs.
It seems a real stretch to me to assume that costs for putting GPUs into space can ever come within a factor of 2-3 of putting them on the ground, even neglecting launch costs.