Maybe because of supply and demand, but not because they bill hourly, which is exactly my point. It won't be simply because the excavator can get it done 4x faster.

I mean that the price multiplier isn't based on the productivity multiplier, as the parent was implying. Of course, the cost of the excavator is built into the price too.

Also for smaller jobs (like with coding), I might now be able to hire a mini excavator (using AI as an analogy for the excavator) myself for a weekend and just do the job myself, and leave the bigger jobs to the pros. That's already happening (look at RR Buildings on YouTube, two guys build massive structures with the help of tools).