Electromechanical displays

I’ve been playing around with some sample electromechanical displays I received from poland and even made a serially controlled module/controller:

Now they make a version where it’s just an array of dots that flip, how cool would it be to interface an arduboy to control 128x64 of these flip dots as the display? I’ve checked on ebay and even used arrays of like 8x32 dots costs hundreds of dollars, if only it were affordable to scrounge together a full 128x64 array. I wonder what the max frame rate they could be driven at with a custom controller and beefy supply?

Update: Finally finished making three of these displays into a youtube sub counter/clock