Yes (and no). Australian beef is mostly grass fed and not fattened up on a feed lot. This accounts for much of the taste difference. It is also less fat, and tougher. I happen to prefer it. Some specialty ranchers in the US do sell US beef that is raised and finished the same way, and it tastes much like Australian beef. However this kind of US beef is less than 1% of the market and hard to find (and 5x the price of Australian beef). Argentinian beef is markedly better than Australian or US beef (there I suspect it is a genetic difference along with the growing conditions).