Dry Dog foods (Is there a big difference?)?

Yes there is a difference. It is the grade of the meat. I feed my puppy Orijen. I have to say what you feed your puppy really makes a difference on their coat and health. Innova is a great brand for dog food too. It is a little bit cheaper than Orijen and EVO, but it is pretty good quality food. I wouldn't base on the food price to judge the quality of the food. Most pet store like petco and petsmart charges $40 - $50 for a 30lbs bag of dog food. I normally pay $60 for a 30 lbs bag of Orijen dog food. It really depends on the ingredients and the quality of the ingredients. Check out local dog store, they tend to sell brands like better quality dog food for the same price you would pay at petco and petsmart. Check out that website, it gives you a review on different dog food. Hope this helps.