Value proposition of two used Octatrack MKIIs?

[KaOsphere]

This post is from ess :

Digitakt warranty

You bet. We have a factory warranty that is valid for the machine itself. The only caveat is that the 3 year warranty is then valid from the date of manufacture rather than date of purchase. You can see the manufacturing date (MFGDT) on the serial number sticker on the bottom of your machine.

I have been too fast, if you have proof of purchase, warranty starts at the date of purchase. Sry !
The rest is acurate though !