I had three of them...sent one back for a 0700, since it was all wonky. Not a bad turnout, really. I sold one, and the last one sits safely in my closet next to its friends. I remember when I spoke to Steve at Kershaw/ZT, he said the same, that they shipped just under 300 pieces, and had several in house for repairs and trying to get some good working models out for replacement. So, I'd say 300 out the door would be a generous estimation.
I love mine...it's just so special to take out and look at. I know that I was part of ZT history. Group hug!