Dogs are not a lesser species, they are a different species. They have a lot to offer us that other humans can't, just as humans offer a lot that dogs can't. It's harder to articulate what it is that dogs give us, but personally I need both in my life. That said, sometimes you need to be alone from other people. But I never have that with Sammy. I always enjoy his company and he always makes me happier. What else in the world can do that? How many people are there who wouldn't spend every cent they had if they could buy happiness? We are the lucky ones who can get that from something as accessible as a dog.