Some people write books to help with this obsession. Others organize this obsession into categories: mascots, sport, sponsor, game place and so on.
And yes, Serena Williams obsesses about this obsession: collecting Olympic pins.
From USA TODAY:
I became one of those freaky pin collectors. Beyond freaky. Freaky isn't even the right word. I was a stalker pin collector. In Sydney I even negotiated trading pins with Johnnie Cochran. That's like a moment in my life. I talked him out of a pin he wanted! It was really cool.
I knew who he was but I didn't recognize him. I was like, 'No, you don't need that pin. I need it.' I literally out-talked him. He was like, 'OK, we'll trade.' It was for a Sierra Leone pin, which was hard because there were only like four athletes there that year from Sierra Leone. Man, it was hard to get that pin. I finally got it.
Let's face it: You could drop some serious bank on these things. The cheapest? $9.99 The most expensive? $65.95.
Oh, well. What else do these athletes really have to spend their money on? Obsess away, oh pin-collector Serena.
In other news, if Serena didn't play tennis in the Olympics, she says she'd choose rhythmic gymnastics.
Don't laugh. ... What else am I going to do? I could do track and field, but I'd still do rhythmic gymnastics. What can I say? I'm not predictable.