Good for doing high res tape loops and tape compressor as part of a DAW - no higher resolution possible on analog tape for a single channel
Good for creating calibration tapes that you can potentially sell $$$ 

 just an idea.
Not a bad machine at all, a unique machine for sure.   If you are selling it let me know.  I don't need one, but i'm sure i'll find a use for it.   I'm serious, let me know.