That's what I'm saying. The difference between the 4 and the 8 is €230, which means it costs that much for the induction heads. Or about €60 a piece including the rack parts.

There is still a bunch of hardware that goes into the moving tool head/extruders to grab the induction nozzle.

So doing the math here, it's about €440 for the extruder/electronics, and about €60 per induction nozzle+ housing.