My experience with Argentine Beef is not that it is the best in the world, but that it is AMONG the best, and absurdly reasonably priced.

One can easily find a good neighborhood Parilla almost anywhere in Buenos Aires that will provide a very nice steak dinner for under 50 pesos (around $15), that is comparable to what one would pay $30-40 for in most areas of the U.S. (and more like $50 in a major city).