I'm glad I will miss this (I head to Argentina in two weeks). Obviously I'm not in dire straits, since I'm taking a vacation in Argentina, but I used miles because ticket prices are so high and I've had to keep planned activities within a budget. The fee would probably not prevent me from going to Argentina, but it definitely would leave me with $131 less to spend on a trip to an estancia, or shoes at Comme il Faut, or a few pricier meals, or wine at Gaucho100K's store.
I agree that Argentina has every right to institute a reciprocal fee and I wish the U.S. would eliminate the one it charges Argentines, but the timing of this seems utterly bizarre.