A dog can go out fox-hunting without being incredibly stuck up and pompous. Dogs don't necessarily prefer blondes. Dogs won't get embarrassed if you call them by a pet name when their friends are around. Dogs travel more cheaply on the bus. Dogs whine less.
Some dogs can be quite talented at singing.
Men lost the World Cup. A dog found it. You can leave a dog alone in your house without worrying so much about what it'll break. A dog gets a new coat every winter. Dogs are not so careless about leaving puddles on the bathroom floor.