I really don't get the factory use case. What kind of productivity boost do people expect, that could make up for the cost of modeling, both up-front and contin

I really don't get the factory use case. What kind of productivity boost do people expect, that could make up for the cost of modeling, both up-front and continuous with every change to the physical setup? Make up for the cumulative cost of the extra delays incurred by adding an AR content maintenance team to the already long list of people you need to coordinate in the project plan when retooling for e.g. a new product? Making the few people left on a high tech high automation factory floor even more productive is an insubstantial gain compared to retooling latency. The former just happens to be easier to quantify, wages are neatly tallied in Excel or SAP, whereas missed opportunities don't appear in your imagination unless you actively think about them. Maybe AR will be the missing building block that makes high tech manufacturing breach the complexity wall where things start to be getting easier, but without more compelling arguments for that side than I have seen so far I will continue suspect that it will just be the opposite of keeping it simple. (This is a general pair of polar opposites I like to use as a mental model in programming: either KISS or climb the complexity/abstraction mountain until it gets easier again - the problem is that you don't know in advance how high the mountain will be, how low the trough on the other side will be, could be higher, could be lower than the default state of KISS and that it is easy to get lost on the way up)