R.S.
I actually asked the butcher the difference.
He told me to buy the packages not the rolls. The rolls he said are mass produced and shipped to him that way. He has no idea the cuts of meat in them. The packages he personally grinds himself and you actually end up with nicer cuts of meat in them. He told me sometimes the packaged ground is prime meat that he could no longer sell as a steak but he can grind it and sell it as ground beef.
I would rather have a chance at eating prime ground beef verses older choice.