In November I called numourous vets to ask about their prices and views on appropriate cat food.
The mobile vets were kind of expensive for visit price and recommended the a cat to be on both wet and dry.
The ones I called ranged from $40-$75. The $75 one was a cat only vet and they had no preference as to what a cat should eat "whatever the cat prefers" was the answer I got. And the others were more pro-dry food.
Our current vet is pro-dry food but charges $55/visit.
Hope this info helped you.