There's this, and then there's also the fact that it's a large investment to replace desktops or laptops en masse with something brand new. Even corporations t

There's this, and then there's also the fact that it's a large investment to replace desktops or laptops en masse with something brand new. Even corporations that have a form hardware refresh policy typically only replace user computers on a rolling 3 or 4 year cycle. Besides day to day management (patching, A/V, GPOs, etc), what the inability to join a domain means for large companies is that they cannot track what they have in use in any useful way, primarily the useful way that Microsoft cares about when it comes to Enterprise Agreement negotiations. This is a huge bugbear, but one that millions of companies have to deal with triannually.