Based on the condition of the box, manual and warranty card - I'm pretty sure they're extra stock from the 90's. Note - the condition isn't bad, just feels old.
I wrote him/her* back to say thanks and they wrote back to say if I needed anything else to drop them a note. Would you like me to PM their email address to you?
* email at one point said David, last one said Amy. Possibly it's a couple of people involved.
thanks for the update!
congrats on your minty new/old system
and PM for the email address
-Jubal-