Another $100. That's a little over six years old now though, so bump it up to $200.
Would I pay $1399 for an American made iPhone with American made internals, as the article suggests it would cost ($100, but I doubled it for inflation, because, why not?)? You bet your sweet ass I would.
Apple is well known. If they say the new iPhone SE 7 has a Made In America chip, people will know about it to buy if they care about that.