Dr. Cadmium wrote:
2) Remove the control boards. Sell the boards as high grade boards and the rest of the units as shred scrap/light iron.
As a side remark, when I took apart several floppy drives, I noticed that some of them, though not all, had cast aluminum cases somewhat similar to those of hard drives. The rest was all iron and I am not even sure if the alum parts are worth the time to disassemble the drives.