My 20-year was two weekends ago, and I didn't go. This summer, I was on and off the fence about going, and I even emailed the organizer for a list of the events. Finally, I decided not to go for the same reasons listed here--plus I didn't figure I could afford to be away in the first place (grading and such), and I didn't feel like spending money for what to me looked like underwhelming events.

A good friend went and kept me informed. Apparently I was asked about, but mostly by people who I've had frequent or infrequent touch with over the years.

I missed my 10-year, and I missed my 20-year. Maybe I'll make the 30-year...