When our Charley was just a puppy, our neighbours (who were "into" purebred doggies) asked me if he was "some sort of strange Cocker"!!!!
There is more awareness due to Sex and The Citys' Elizabeth Taylor.
I think quite a few grow outside of the breed standard....without being fat.
Look at the beautiful black cavvie that was in rescue, certainly different but beautiful non-the-less!!