It is a strategic loss.
It is also used in Lasers.
Pretty sure there is substantial use of Helium 3 and 4 in the Hadron Collider.
There are some U.S. Companies that are involved in Drilling for N.G. and extracting Helium and Hydrogen from the Gas.
(Desert Mountain Energy is one that comes to mind, not established, but ready to start extracting Helium in June.)