This is the kind of talk that shuts down innovation in this hobby.

MM does not have a Rube Goldberg level of complexity. A drawbridge and gate that opens, some switches and a simple exploding castle mech could be engineered today and is not from some alternate universe where magical mechs were once built. We have not lost this technology after some apocalyptic world event. Yet, I agree, the castle is the best example of mechanical theme integration.

That something like the MM castle hardware would make the BOM immediately astronomical today and therefore somehow impossible on machines that are going up a thousand per year on average lately is ridiculous. The fact that MMr was released in fact negates your point completley.

Let’s show some imagination and continue to believe that more is possible this century which I think is part of the OPs point.

Someday when you try MM for the first time you’ll notice that we are not just talking about the exploding castle but the working drawbridge, gate, moat, wall shot and how they all interact during play.