The personal gratification and ability to tell the 10ish people who might be slightly impressed is enough. Though I wouldn't say no to an extra badge from when I did mine so it can sit in a drawer with all the other badges I've got.
Oh, I tell everyone don't worry about that, people tend to get bored when I'm only just explain what fixed gear is and I struggle to even get to the point of introducing the concept of Audax to them.
The personal gratification and ability to tell the 10ish people who might be slightly impressed is enough. Though I wouldn't say no to an extra badge from when I did mine so it can sit in a drawer with all the other badges I've got.