While I get that this might be hot and 'trendy' to talk about, please give people the important quotes before having them run off to buy the next fad in the meat industry.

"Although the fatty acid composition of grass-fed and conventionally fed beef was different, conclusions on the possible effects of these differences on human health cannot be made without further investigation."

From the study you link: http://www.ncbi.nlm.nih.gov/pubmed/18641180

Layman terms: It might be beneficial, but we're not sure and haven't researched it enough. But it sure as heck is a lot more expensive in the grocery stores.