It kind of depends on how hard the dog is going to work and if they are a house dog or an outdoor dog (espicially in the winter).
Hard working dogs need at least 30% Protein and 20% Fat in their food. "House dogs" can get by with 24% P and 14% F (give or take a couple %). If a dog is kenneled outdoors in the winter, a higher Fat level is needed.
I feed my dog Eagle Pack Power Formula.
If you want to do some "research", go to
www.doberdogs.com and look through the "dog food comparison charts".
BTW, the Ol' Roy bag probably has better nutrition than the contents.
As far as "Expense"..........It's NOT the price of the bag that counts, it's the cost per day. If you feed a junk product that's $0.50 per pound, and you feed 2 pounds a day --------- or you feed a premium food that's $1.00 per pound and you feed a pound a day, the expense is the same. With a premium food, not only is your dog getting optimal nutrition, but you only have 1/3 as much poop to clean up.