Well, I dont mind speanding a few extra bucks on dog food every month for my dog to be as healthy as possible
Corn is cheap, It is 1 of the main cause of allergies in dogs regarding pet foods. Corn is a filler.
Because dogs are mainly Carnivorous creatures, and would live healthier with a just meat diet. I choose not to feed my dog mainly corn. Or meat Bi products. I have yet to see a dog or cat in a corn feild hunting a ear of corn

When my uncles dog was eating ol' roy dog food, she would have to eat 10 cups of ol'roy to get the nutrients she now gets in 3 cups of wellness. Commercial brand dog foods, such as purina and the dreaded pedigree are the same thing.
To anybody that has had a vet tell them that pedigree or any other crap foods are just as good, I hope you realize that vets no diddly squat when it comes to nutrition. They learn close to nothing about it in school. And I have heard many vets admit to that.