Originally posted by wolfsoul
Good point! That's probably it.

And yes, castrating is much easier. They will even let the vet techs do it. You know that they can do it without anesthesia if you want? I think that's just terrible!
that is not really the reason, I asked the vet about why they charge so much for larger dogs to get spayed, and it is because they have more fat to cut through and it is a longer procedure.