Not sure it is just about inference costs, errors in handling things and beings in the real world have a very different "surface" from immaterial applications - robots might need to have failsafes, independent limiters, etc. there.

Great point, inference is just one variable. It’d be really great to know how much those tasks costs in inference. I’m assuming they cost significantly higher than human labor. Therefore, the inference cost is so high that it makes the other variables seem irrelevant for the time being.