IPhone users richer, brainier, more tasteful than Android-ers

I think it's a Marketing issue. The article describes it as self-image related. This could be true, and it's successful Marketing for Apple to convince buyers that they're special. It could also be that something that the article is missing - that Apple is hitting a wealthier and more outgoing target demographic. These are the types of people who will use the phone to communicate more, and will buy more apps.