Grass fed cows
this day in age Corn is the enemy. Around here if you buy hay for winter time you pay a premium due to a shortage. (drought in early spring)
The corn price is so high people are afraid to buy the feed.
This all translates into a dollar per pound.
However if its a cow or two for yourself then let them graze away and fill your freezer in the fall. A good beef cow can be fattened up in a year.