I don't foresee anyone rolling that sort of technology into a < $600 grinder however.
I guarantee you that all of the grinders on the market cost *nowhere* near their selling price to manufacture. My MDX is close to $1000 new, and I can think of a ton of things that are more complex, required way more engineering, and cost much less:
- power tools like chainsaws or other things with engines
- precision power tools like jointer planers, certain types of saws, drill presses, micro-mills and lathes
- laptops and other electronics
Not including the doser, my MDX literally has less than 10 parts if you strip it down. And if you look back to early 2000's prices on all of these things, they were half the price of what they are now, sometimes less. Just look at the old reviews on grinders, many of them mention what they paid new for them.
So, as far as putting this "technology," which isn't complex, into a sub-$600 grinder.... it's completely possible. The problem is, anyone doing it is going to charge whatever the enthusiasts and commercial customers will pay.