Mike ... I won't be doing any plastic plating that's for sure. I've got enough going on. Personally I don't think the juice is worth the squeeze compared to just paint.
Come to think of it ... they now make conductive filament for printing .... not sure how that will affect the process. I'm guessing the only practical method is doing parts in volume and sending them off to be plated.
I DO have a threshold where I'd rather send something out, than do it myself