I had a buddy who was the HQ Co. CO of old the 229th Attack Helicopter Battalion of the 101st Abn Div just as they were transitioning from Cobras and Hueys to Apaches and Blackhawks. He always said he preferred the Huey "because the ol' girl's got no tricks left in her."
Ironically, he was killed in a Blackhawk training accident. It wasn't the Blackhawk's fault, it a was a mid-air collision between two Blackhawks operating under night vision goggles. Ironic just the same.
The November model Huey was primarily created for the Navy. For reasons of over-water operations, they didn't/don't want an a/c that isn't multi-engine. That's why the Marine's AH-1 Cobra attack helicopter is twin-engine. Because they have to dance to the tune the Navy calls.
The Army is already replacing Hueys with Eurocopter EC145 (which is a descendant of the MBB BK117). They're calling them UK-72 Lakotas. And yes, they're built in America (by American Eurocopter). It will only haul half as many stretchers as a Huey will but the Army says they have very few medivac missions any more that require more than three stretchers.
The "M" in the initials MBB, BTW, is for "Messerschmitt."
Yes, the US Army is buying helicopters from the descendant of the company that built the Bf-109, Bf-110, ME-262, and ME-163 airplanes for the Nazis.