Right, but you have some laptops coming back from leaving workers. Laptops issued to interns. Windows laptops issued to people who come back and say they need Linux. Laptops loaned to people while their main laptop was being repaired. And of course the dreaded no-fault-found returns.

Of course you wouldn't want to be locked in to HP hardware only. And hopefully you've got an endpoint management tool which is gathering at least some of this data anyway...