I don't know what an urrgh will be, but looking forward rather than backward as you suggest, I think it's likely that a small group of people will leverage increasing automation to meet worldwide demand, and that every new urrgh will be cheaper and cheaper (as it must be to be affordable to an increasingly low-wage population) and will be made by more and more automation and fewer and fewer people.

The economy is a complex adaptive system that is not well-understood; are you so sure that there is no such thing as too much efficiency? After all, life itself is inefficient---if we want to get to our ultimate destination faster, it would be most efficient to kill ourselves. But I assume you are smart enough to avoid doing that.