Really useful incite.
Got me curious; If demo stock need to sit for 12 months minimum, and these appear to be Customer had change of Mind, to avoid stigmatising their chances of re-sell, do they reference it as an Open Box item?
People tend to think, customer has returned, there must be something wrong with it, so how do they relabel it?
Technically as commented above, should be labelled as second hand but that would depreciate the value greatly.
I suspect most reputable dealers would veer towards transparency than risk ruining their reputation, which takes years to build but only seconds to destroy.