The reason for this, is that technology grows ever cheaper and...

The reason for this, is that technology grows ever cheaper and more powerful by the day (moore's law, etc).
Human trade ability (bricklaying, cabinetmaking, smithing, labouring) does not increase much or at all as time goes on (unless assisted by tech which is exactly what I'm talking about)

Check out the cost of a computer in their early days, the cost of a vehicle, the cost of a battery drill, DVD player, drone, stereo, anything.

In a few years time it wont be about autonomous vs human labour, it will be deciding which model people want to use.

Being a first mover in the space is like being macintosh or windows, or the pioneer of any other great tech advancement.

As you were!