I can understand fandom to some extent. It's fun to care about things that, at the end of the day, we know aren't all that important. It's sort of freeing, really, since there seem to be an endless stream of dire, troubling aspects of life that demand our attention. I can obsess over whether my kids are really safe, whether I'll be able to pay my bills next month or I could act like the result of a soccer match is a matter or life and death. Fandom is kind of a coping mechanism in that way.
But then there are people who make "lifelike" baby dolls of Harry Potter characters. And people who pay hundreds of dollars for them on eBay. It probably makes me a bad and somewhat intolerant person, but I just can't understand what's going through the mind of the sort of person who would actually want to own a newborn version of Dobby the house elf, but hey, to each their own.