We had a nightmare litter,my bitch ended up at the vets,two dead pups,they had to put her under a GA to remove the pups,cost us a fortune.We made a big loss on that litter.
I think its good to list everything rather than learn the hard way,at least then you have it "just in case"

I think some breeds are more expensive to breed than others,requiring different tests etc,but that price is reflected in how much there sold for.