I played with the map a little bit. I think its cool at the first glance. What is missing is how it necessarily applies to me, user? I can understand that probably what makes people truly happy universally is applicable to me. But probably could use some quick guidance. You say it in your description - story, although this moment is buried in longer description of methodology. I also had to figure out on my own that each individual response is example of what can make me happy. Still, I think this map has potential for more cool features base don this data.
Also many people don't seem to control what they buy.
Children/family are mostly containing answers such as "My son visited me on Mother's Day.", which you can't really cause yourself.