I ordered a nice size order of grass-fed ground beef from Tallgrass Beef when there was a free shipping special. Add in the 20% coupon I had, and I yielded the highest quality ground beef at a cost of $3.19/lb, delivered. Individually vaccum sealed in 1-lb packs, and they all went into the deep freezer.
I won't buy beef for more than $1.25US/lb. Which means brisket around here, or 7-bone (aich bone). Lose 30% in fat trimmings (I use that for other stuff like sausage). And you wind up with ground meat that you can count on to NOT have been dropped on a floor where someone has recently thrown up, and YOU control the fat content.
I use about 23% fat content for burgers, and 17% fat content for chili.
/johnny