No you can't buy happiness and it doesn't cost you a thing. Kids can find joy in almost anything, even things we adults find "blah". To tell the truth, no matter how many toys I buy them, they can be happy with a pack of crayons and a coloring book or even a plain notebook. They can be happy with running around in a circle out in the park. Yes my children, as well as many other children are pretty easy to please.