[galaxyLogic]

The article proposes the explanation that because bronze was expensive if some gear broke the bronze was melted and reused maybe for something similar IF you had the skills to make a new one, but as likely used for something else.

Also it seems like a major undertaking creating such a machine. Perhaps they had just a few of them like we have just a few big particle accelerators.

The article does not get into how much effort and wealth it would have required to build such a machine assuming you had the people who could a) create the gears with high enough precision and b) assemble it. If you ever took a mechanical alarm clock apart and tried to re-assemble it you know what I mean.