Out in the world, you have more phone freedom and a direct connection to Samsung, Beards.
Here in the US, if you're on Sprint or Verizon for example, there is no such thing as model directly from Samsung in any way.
Thanks to a combination of divergent radio technologies being used and our own copyright laws (I know, makes no sense, it's a long story, but yeah - copyright laws), you cannot buy a Sprint or Verizon phone from anyone other them or one of their vendors. They dictate in the US which models are supplied from our point of view.
If Sprint or Verizon orders none, none are available.
If they try to order from Samsung and can't get orders filled, we never know about it.